Object oriented programming in JavaScript
Download as pptx, pdf1 like259 views
This is the content of my 5 min Lightning talk regarding OOJS in "Free Code Camp" meetup in Melbourne on 14-Mar-2017.
1 of 13
Download to read offline
![OBJECTS IN JAVASCRIPT (CONTD..)
Object Format
var objectName = {
member1Name: member1Value,
member2Name: member2Value,
member3Name: member3Value
}
Each name/value pair must be
separated by a comma
The name and value in each case are
separated by a colon
Sample Object
var person = {
name : {
first: 'Bob',
last: 'Smith‘
},
age: 32,
gender: 'male',
greeting: function() {
alert('Hi! I am ' + this.name[0]);
}
};](https://image.slidesharecdn.com/objectorientedprogramming-170314090404/85/Object-oriented-programming-in-JavaScript-5-320.jpg)
![ACCESS OBJECT PROPERTIES
Dot Notation
person.age, person.gender
Person.name.first, person.name.last
Bracket Notation
Using Property:
person[‘age’], person[‘gender’]
person[‘name’][‘first’], person[‘name’][‘last’]
Using Index:
person[0], person[1]
Person[0][‘first’], Person[0].first
Difference
Dot notation can only accept a literal member name, not a variable value pointing to a name](https://image.slidesharecdn.com/objectorientedprogramming-170314090404/85/Object-oriented-programming-in-JavaScript-6-320.jpg)
![SET OBJECT PROPERTIES
person.age = 45
person['name']['last'] = 'Cratchit‘
We can also create new members.
person['eyes'] = 'hazel'
person.farewell = function() { alert("Bye everybody!") }](https://image.slidesharecdn.com/objectorientedprogramming-170314090404/85/Object-oriented-programming-in-JavaScript-7-320.jpg)
Ad
Recommended
Javascript Prototype Visualized
Javascript Prototype Visualized军 沈 This document discusses JavaScript prototypes and how they work. It explains that every function has a prototype property that is shared among objects created with that function. It also explains that every object has a hidden __proto__ property that links it to a prototype object. It provides examples of how prototype inheritance works for both classical and prototypal inheritance in JavaScript. Key points covered include how the new operator works, property lookup via the prototype chain, and the relationships between functions, prototypes, and objects in JavaScript.
Prototype
PrototypeAditya Gaur Javascript uses prototypal inheritance rather than classical inheritance. In prototypal inheritance, objects inherit directly from other objects by using the object's prototype property. The prototype property allows objects to inherit methods and properties from other objects. When accessing a property on an object, Javascript will search the prototype chain to find the property if it is not present on the object itself. This allows code reuse through prototype chaining. The prototype property of a function sets the prototype of objects created with that function.
Basic concept of Object Oriented Programming 
Basic concept of Object Oriented Programming Prognoz Technologies Pvt. Ltd. Step by step description of how to implement a class and how Objects use in a class. You
can use these Concepts in Java, .Net and Php for software or website development.
JavsScript OOP
JavsScript OOPLearningTech This document discusses object-oriented programming (OOP) concepts in JavaScript, including classes, objects, properties, methods, inheritance, and custom objects. It provides examples of creating classes, defining properties and methods, instantiating objects, and extending classes through inheritance. Standard built-in objects like Math and custom objects like a Person class are demonstrated.
Js: master prototypes
Js: master prototypesBarak Drechsler Practical and conceptual overview of Javascript prototype paradigm, how to use prototypes, how do they work, and how do they differ from classes, and why there are no real classes in Javascript.
Object oriented javascript
Object oriented javascriptUsman Mehmood The document provides an overview of object-oriented programming concepts in JavaScript including classes, objects, properties, methods, constructors, inheritance, encapsulation, and abstraction. It discusses defining classes and custom objects, creating instances of classes, adding and calling methods and properties, implementing inheritance between classes, and other core OOP principles in JavaScript.
The prototype property
The prototype propertyHernan Mammana functions, constructor functions, this keyword, instances, prototype, own properties, prototype properties
Spanish video: https://www.youtube.com/watch?v=oq-6rGZkogY
JavaScript OOPS Implimentation
JavaScript OOPS ImplimentationUsman Mehmood This document provides an overview of object-oriented programming concepts in JavaScript. It discusses that JavaScript is an object-oriented language that uses prototypes instead of classes. It explains JavaScript's core data types including strings, numbers, Booleans, and objects. It also covers creating custom objects with prototypes, defining methods and properties, public and private members, and inheritance using closures and prototyping. Memory management with closures and the module pattern are also summarized.
Ruby object model
Ruby object modelChamnap Chhorn This document provides an overview of key concepts in Ruby including variables, methods, classes, modules, inheritance and scope. It discusses local variables, instance variables, class variables and global variables. It explains how methods are defined and called in Ruby. It describes classes and modules, and how modules can be mixed into classes. The document also covers inheritance, constants, self, and singleton methods. It provides details on variable scope and how Ruby determines an identifier is a variable, keyword or method call.
Only oop
Only oopanitarooge Object oriented programming uses concepts like encapsulation, inheritance and polymorphism to create robust and secure code. The key concepts are:
1. Encapsulation and data abstraction which group data and functions that work on that data.
2. Inheritance allows code reusability through parent-child class relationships in multilevel and multiple inheritance.
3. Polymorphism enables one interface and different actions through inheritance.
Php oop presentation
Php oop presentationMutinda Boniface This document discusses object-oriented programming concepts in PHP, including classes, objects, inheritance, polymorphism, and data hiding. It provides examples of each concept, such as using the extends keyword for inheritance and interfaces for polymorphism. Magic functions like __get() and __set() are also covered. Keywords in PHP OOP like class, interface, implements, and extends are highlighted.
JavaScript Objects
JavaScript ObjectsHazem Hagrass This document discusses JavaScript objects and object-oriented programming (OOP) in JavaScript. It introduces the author and defines JavaScript as an object-oriented language, noting that everything in JavaScript besides five primitive types (Number, String, Boolean, undefined, null) is an object. It describes creating user-defined objects using the new Object() constructor, functions as objects, object methods, and object literals - a lightweight syntax for creating objects. Examples are provided for each concept to illustrate OOP techniques in JavaScript.
Java classes and objects interview questions
Java classes and objects interview questionsDhivyashree Selvarajtnkpm A private constructor can only be used within the class in which it is declared. It prevents the class from being instantiated outside of the class, allowing for singleton, utility classes, or subclasses to be the only way to obtain an instance. Private constructors are commonly used to implement singleton design patterns where only one instance of a class is allowed.
Hibernate
HibernateHarish Patil ( ハリシュパテイル) Hibernate, created by Gavin King, known as the best and dominated object/relational persistence (ORM) tool for Java developers (Now is support .NET). It provides many elegant and innovative ways to simplifies the relational database handling task in Java.
Hibernate is great at a lot of things, but its something that needs to be used appropriately. In this tutorials, it providing many step by step examples and explanations on using Hibernate3
OOP, API Design and MVP
OOP, API Design and MVPHarshith Keni Presentation on the principles, philosophy and a few applications of object oriented programming along with a few pointers on how to effectively code. Presented at a session aimed at undergrad computer science students at the University of Pune.
Present along with Mr. Anirudh Tomer and Mr. Toshish Jawale.
Object oriented programming in php
Object oriented programming in phpAashiq Kuchey Object oriented programming assumes everything as an object. Key concepts include classes, objects, member variables and functions, inheritance where a child class inherits from a parent class, polymorphism where the same function can be used for different purposes, encapsulation which combines data and functions into an object, and constructors and destructors which are automatically called when an object is created or destroyed. Common uses of classes in PHP include defining properties and methods, creating objects, and extending and implementing other classes.
Oops concepts in php
Oops concepts in phpCPD INDIA Object Oriented Programming (OOP) is the programming method that involves the use of the data , structure and organize classes of an application.
Javascript Design Patterns
Javascript Design PatternsIván Fernández Perea This document provides an overview of JavaScript design patterns based on Addy Osmani's book "Essential JavaScript & jQuery Design Patterns". It begins with background on design patterns and defines what a design pattern is. It describes the structure of design patterns and discusses anti-patterns. It then covers common JavaScript design patterns including creational, structural, and behavioral patterns as well as MV* patterns like MVC, MVP, and MVVM. Specific patterns like Module, Observer, Command, Constructor & Prototype, and examples using Backbone.js, Spine.js, and Knockout.js are summarized.
Introduction to OOP with PHP
Introduction to OOP with PHPMichael Peacock This document provides an overview of object-oriented programming (OOP) concepts in PHP including classes, objects, encapsulation, polymorphism, inheritance, magic methods, interfaces, abstract classes, and type hinting. Key points covered include defining classes with properties and methods, instantiating objects from classes, visibility of properties and methods, extending and overriding parent classes, implementing interfaces, and using polymorphism through interfaces to allow different classes to be used interchangeably.
Introduction to javascript and yoolkui
Introduction to javascript and yoolkuiKhou Suylong This document provides an introduction to JavaScript and the YoolkUi framework. It begins with an overview of JavaScript data types like objects, functions, numbers, strings, and booleans. It then covers JavaScript concepts like objects, arrays, functions, prototypes, inheritance, and the document object model. The document concludes by introducing the YoolkUi framework, describing its components like events, utilities, widgets, and how it handles DOM and object events.
Solid OOPS
Solid OOPSToshish Jawale The document discusses converting real-world entities into programming objects and understanding their applications in API designing and MVC frameworks. It describes representing real things as objects in code, organizing classes in a standard way, defining class attributes like fields and methods, and relating classes through inheritance and relations. It also explains concepts like abstraction, interfaces, packages, and the roles of models, views and controllers in MVC architectures. The document advocates separating programs into these components to organize code and handle tasks like displaying data and user interaction separately.
Javascript closures 
Javascript closures VNG introduction, The Resolution of Property Names on Objects.
Closure
A "closure" is an expression (typically a function) that can have
free variables together with an environment that binds those
variables (that "closes" the expression)
PHP Classes and OOPS Concept
PHP Classes and OOPS ConceptDot Com Infoway - Custom Software, Mobile, Web Application Development and Digital Marketing Company This document provides an introduction to object-oriented programming concepts in PHP including defining classes, creating objects, using methods and properties, inheritance, and the differences between OOP in PHP4 and PHP5. Classes define objects with attributes and behaviors, objects are instantiated from classes and can access methods and properties, and child classes inherit attributes and behaviors from parent classes.
Synapseindia object oriented programming in php
Synapseindia object oriented programming in phpSynapseindiappsdevelopment Synapseindia object oriented programming in php
Synapseindia PHP Development,
Synapseindia Magento Development,
Synapseindia Reviews,
Synapseindia Complaints,
Synapseindia Sharepoint Development,
Synapseindia dotnet Development
Ruby object model - Understanding of object play role for ruby
Ruby object model - Understanding of object play role for rubyTushar Pal Ruby's object model has the following key points:
1. Classes are objects in Ruby and are open for modification and extension.
2. The Kernel module includes common methods like Array and Hash that can be called without an explicit receiver.
3. Classes inherit from other classes, not individual objects, and share methods but not instance variables.
4. Modules allow grouping of methods for inclusion in classes as an alternative to multiple inheritance.
How prototype works in java script?
How prototype works in java script?InnovationM By default, every function has a property called prototype this property by default is empty and you can add properties and methods to it and when you create an object from this function. The object inherits its properties and methods.
Metaprogramming in JavaScript
Metaprogramming in JavaScriptMehdi Valikhani An introduction to metaprogramming and an overview of some of the ES6 features that enable Reflective Metaprogramming in JavaScript.
OCAJP_SE8_eCertificate
OCAJP_SE8_eCertificateAditya Majety The document is a certificate from Oracle University certifying that Aditya Majety has passed the Oracle Certified Associate, Java SE 8 Programmer exam as of June 25, 2016. The certificate number is 246361035OCAJSE8.
Equity bazaar 14032017
Equity bazaar 14032017choice broking The document provides an intraday analysis of the Nifty index and Bank Nifty index from Equity Bazaar. It notes that the indexes may open with a gap up due to positive cues from other Asian markets and election results in India. It analyzes key support and resistance levels for the indexes and notes that momentum remains compressed in a range. Stocks across various sectors are also analyzed in terms of support and resistance levels and whether they present buy or sell opportunities. Key economic events like the upcoming Federal Reserve meeting are also mentioned.
More Related Content
What's hot (20)
Ruby object model
Ruby object modelChamnap Chhorn This document provides an overview of key concepts in Ruby including variables, methods, classes, modules, inheritance and scope. It discusses local variables, instance variables, class variables and global variables. It explains how methods are defined and called in Ruby. It describes classes and modules, and how modules can be mixed into classes. The document also covers inheritance, constants, self, and singleton methods. It provides details on variable scope and how Ruby determines an identifier is a variable, keyword or method call.
Only oop
Only oopanitarooge Object oriented programming uses concepts like encapsulation, inheritance and polymorphism to create robust and secure code. The key concepts are:
1. Encapsulation and data abstraction which group data and functions that work on that data.
2. Inheritance allows code reusability through parent-child class relationships in multilevel and multiple inheritance.
3. Polymorphism enables one interface and different actions through inheritance.
Php oop presentation
Php oop presentationMutinda Boniface This document discusses object-oriented programming concepts in PHP, including classes, objects, inheritance, polymorphism, and data hiding. It provides examples of each concept, such as using the extends keyword for inheritance and interfaces for polymorphism. Magic functions like __get() and __set() are also covered. Keywords in PHP OOP like class, interface, implements, and extends are highlighted.
JavaScript Objects
JavaScript ObjectsHazem Hagrass This document discusses JavaScript objects and object-oriented programming (OOP) in JavaScript. It introduces the author and defines JavaScript as an object-oriented language, noting that everything in JavaScript besides five primitive types (Number, String, Boolean, undefined, null) is an object. It describes creating user-defined objects using the new Object() constructor, functions as objects, object methods, and object literals - a lightweight syntax for creating objects. Examples are provided for each concept to illustrate OOP techniques in JavaScript.
Java classes and objects interview questions
Java classes and objects interview questionsDhivyashree Selvarajtnkpm A private constructor can only be used within the class in which it is declared. It prevents the class from being instantiated outside of the class, allowing for singleton, utility classes, or subclasses to be the only way to obtain an instance. Private constructors are commonly used to implement singleton design patterns where only one instance of a class is allowed.
Hibernate
HibernateHarish Patil ( ハリシュパテイル) Hibernate, created by Gavin King, known as the best and dominated object/relational persistence (ORM) tool for Java developers (Now is support .NET). It provides many elegant and innovative ways to simplifies the relational database handling task in Java.
Hibernate is great at a lot of things, but its something that needs to be used appropriately. In this tutorials, it providing many step by step examples and explanations on using Hibernate3
OOP, API Design and MVP
OOP, API Design and MVPHarshith Keni Presentation on the principles, philosophy and a few applications of object oriented programming along with a few pointers on how to effectively code. Presented at a session aimed at undergrad computer science students at the University of Pune.
Present along with Mr. Anirudh Tomer and Mr. Toshish Jawale.
Object oriented programming in php
Object oriented programming in phpAashiq Kuchey Object oriented programming assumes everything as an object. Key concepts include classes, objects, member variables and functions, inheritance where a child class inherits from a parent class, polymorphism where the same function can be used for different purposes, encapsulation which combines data and functions into an object, and constructors and destructors which are automatically called when an object is created or destroyed. Common uses of classes in PHP include defining properties and methods, creating objects, and extending and implementing other classes.
Oops concepts in php
Oops concepts in phpCPD INDIA Object Oriented Programming (OOP) is the programming method that involves the use of the data , structure and organize classes of an application.
Javascript Design Patterns
Javascript Design PatternsIván Fernández Perea This document provides an overview of JavaScript design patterns based on Addy Osmani's book "Essential JavaScript & jQuery Design Patterns". It begins with background on design patterns and defines what a design pattern is. It describes the structure of design patterns and discusses anti-patterns. It then covers common JavaScript design patterns including creational, structural, and behavioral patterns as well as MV* patterns like MVC, MVP, and MVVM. Specific patterns like Module, Observer, Command, Constructor & Prototype, and examples using Backbone.js, Spine.js, and Knockout.js are summarized.
Introduction to OOP with PHP
Introduction to OOP with PHPMichael Peacock This document provides an overview of object-oriented programming (OOP) concepts in PHP including classes, objects, encapsulation, polymorphism, inheritance, magic methods, interfaces, abstract classes, and type hinting. Key points covered include defining classes with properties and methods, instantiating objects from classes, visibility of properties and methods, extending and overriding parent classes, implementing interfaces, and using polymorphism through interfaces to allow different classes to be used interchangeably.
Introduction to javascript and yoolkui
Introduction to javascript and yoolkuiKhou Suylong This document provides an introduction to JavaScript and the YoolkUi framework. It begins with an overview of JavaScript data types like objects, functions, numbers, strings, and booleans. It then covers JavaScript concepts like objects, arrays, functions, prototypes, inheritance, and the document object model. The document concludes by introducing the YoolkUi framework, describing its components like events, utilities, widgets, and how it handles DOM and object events.
Solid OOPS
Solid OOPSToshish Jawale The document discusses converting real-world entities into programming objects and understanding their applications in API designing and MVC frameworks. It describes representing real things as objects in code, organizing classes in a standard way, defining class attributes like fields and methods, and relating classes through inheritance and relations. It also explains concepts like abstraction, interfaces, packages, and the roles of models, views and controllers in MVC architectures. The document advocates separating programs into these components to organize code and handle tasks like displaying data and user interaction separately.
Javascript closures
Javascript closures VNG introduction, The Resolution of Property Names on Objects.
Closure
A "closure" is an expression (typically a function) that can have
free variables together with an environment that binds those
variables (that "closes" the expression)
PHP Classes and OOPS Concept
PHP Classes and OOPS ConceptDot Com Infoway - Custom Software, Mobile, Web Application Development and Digital Marketing Company This document provides an introduction to object-oriented programming concepts in PHP including defining classes, creating objects, using methods and properties, inheritance, and the differences between OOP in PHP4 and PHP5. Classes define objects with attributes and behaviors, objects are instantiated from classes and can access methods and properties, and child classes inherit attributes and behaviors from parent classes.
Synapseindia object oriented programming in php
Synapseindia object oriented programming in phpSynapseindiappsdevelopment Synapseindia object oriented programming in php
Synapseindia PHP Development,
Synapseindia Magento Development,
Synapseindia Reviews,
Synapseindia Complaints,
Synapseindia Sharepoint Development,
Synapseindia dotnet Development
Ruby object model - Understanding of object play role for ruby
Ruby object model - Understanding of object play role for rubyTushar Pal Ruby's object model has the following key points:
1. Classes are objects in Ruby and are open for modification and extension.
2. The Kernel module includes common methods like Array and Hash that can be called without an explicit receiver.
3. Classes inherit from other classes, not individual objects, and share methods but not instance variables.
4. Modules allow grouping of methods for inclusion in classes as an alternative to multiple inheritance.
How prototype works in java script?
How prototype works in java script?InnovationM By default, every function has a property called prototype this property by default is empty and you can add properties and methods to it and when you create an object from this function. The object inherits its properties and methods.
Metaprogramming in JavaScript
Metaprogramming in JavaScriptMehdi Valikhani An introduction to metaprogramming and an overview of some of the ES6 features that enable Reflective Metaprogramming in JavaScript.
PHP Classes and OOPS Concept
PHP Classes and OOPS ConceptDot Com Infoway - Custom Software, Mobile, Web Application Development and Digital Marketing Company
Viewers also liked (19)
OCAJP_SE8_eCertificate
OCAJP_SE8_eCertificateAditya Majety The document is a certificate from Oracle University certifying that Aditya Majety has passed the Oracle Certified Associate, Java SE 8 Programmer exam as of June 25, 2016. The certificate number is 246361035OCAJSE8.
Equity bazaar 14032017
Equity bazaar 14032017choice broking The document provides an intraday analysis of the Nifty index and Bank Nifty index from Equity Bazaar. It notes that the indexes may open with a gap up due to positive cues from other Asian markets and election results in India. It analyzes key support and resistance levels for the indexes and notes that momentum remains compressed in a range. Stocks across various sectors are also analyzed in terms of support and resistance levels and whether they present buy or sell opportunities. Key economic events like the upcoming Federal Reserve meeting are also mentioned.
Church Youth Work - (Gloria, Dembo, Lisa, Ola)
Church Youth Work - (Gloria, Dembo, Lisa, Ola)Early Artis The Evangelical Lutheran Church of Finland is the dominant Christian denomination, with over 5 million members. Church youth work involves religious education and spiritual guidance for children and young people aged 0-29. It is carried out through Sunday schools, confirmation classes, youth clubs and camps. The Church employs over 1,000 youth workers and allocates around 30% of its budget to programs for children and youth. Snellu is one organization that provides youth services, such as support for those with special needs or personal crises. Careers in church youth work include becoming a youth worker, special youth worker, or volunteer after training. Funding comes from the state, municipalities, and the Church itself.
JavaScript im Jahr 2016
JavaScript im Jahr 2016Christian Kaltepoth Kaum eine Sprache hat sich in den vergangenen Jahren so stark gewandelt wie JavaScript. Während die Sprache früher als Spielerei abgetan wurde, hat sich besonders in den letzten Sprachversionen gezeigt, dass man auch in JavaScript professionellen und hochwertigen Code schreiben kann. Dieser Talk zeigt anhand konkreter Beispiele, in welchen Bereichen es deutliche Verbesserungen gegeben hat und auf welche Weise man heute die typischen JavaScript-Fallstricke vermeiden kann. Dabei stehen besonders die neuesten Sprachversionen ECMAScript 2015 und 2016 im Fokus, die sich mithilfe von Transpilern auch problemlos in älteren Browsern nutzen lassen.
Encapsulation in JavaScript - OOP
Encapsulation in JavaScript - OOPAditya Majety Encapsulation in JavaScript restricts direct access to some object components and bundles data with methods that operate on that data. It provides security through controlled access, hides implementation details while exposing behavior, and allows loose coupling by modifying implementations freely. Private members and methods can only be accessed within an object while public members and methods can be accessed anywhere and by anything. A demonstration of encapsulation in JavaScript was presented.
Fabrication and Performance Analysis of Downdraft Biomass Gasifier Using Suga...
Fabrication and Performance Analysis of Downdraft Biomass Gasifier Using Suga...IJSRD The process by which biomass can be converted to a producer gas by supplying less oxygen than actually required for complete combustion of the fuel is known as gasification. It is a thermo-chemical process and it is performed by a device known as gasifier. For executing the gasification experiments nowadays single throated gasifier uses sugarcane industry waste. In the present study we get to know that sugarcane briquettes are manufactured from residue of sugarcane which is used as a biomass material for the gasification process. Briquettes are formed by extruding the sugar which is extracted from the residue of sugarcane (bagasse) dried in the sun. Equivalence ratio, producer gas composition, calorific value of the producer gas, gas production rate and cold gas efficiency are certain grounds for estimating the performance of the biomass gasifier. The experiential results are compared with those reported in the literature.
The JavaScript Programming Primer
The JavaScript Programming PrimerMike Wilcox The document provides an overview of JavaScript programming concepts including language overview, scope, context, and closures. It discusses that JavaScript objects are mutable and can be extended, and functions are first-class objects that can be assigned to variables or properties. Scope is determined lexically but context refers to the object a method belongs to and is determined at runtime by the "this" keyword. Accidental globals can occur if variables are not declared with "var".
The JavaScript Programming Language
The JavaScript Programming LanguageRaghavan Mohan The document provides an overview of the JavaScript programming language, including its history, key concepts, values, operators, statements, and objects. It discusses JavaScript's misunderstood nature due to its name, design errors in early implementations, and use in browsers. Some key points made include: JavaScript is a functional language; it uses prototypal inheritance instead of classes; all values are objects except for primitive values; and functions are first-class objects that can be assigned and passed around.
Introduction to web programming with JavaScript
Introduction to web programming with JavaScriptT11 Sessions This document provides an overview of web programming with JavaScript. It discusses topics like:
- HTML and CSS which are used to structure and style web pages
- How browsers interpret HTML, CSS, and JavaScript to display web pages
- What backend and frontend development involve
- Common JavaScript concepts like variables, operators, functions, and events
- Tools that can be used for web development like text editors, browsers, and version control software
- Resources for learning more about JavaScript and web programming
JavaScript 101
JavaScript 101Mindy McAdams An introduction to JavaScript that includes side-by-side comparisons with Python -- for journalism students. Based on the free JavaScript exercises/lessons at Codecademy: http://www.codecademy.com/tracks/javascript (Students in this course spent 4 weeks learning Python before they were introduced to JavaScript.)
Paris Web - Javascript as a programming language
Paris Web - Javascript as a programming languageMarco Cedaro How to setup up a stable javascript continuous integration environment and why you need it. Through a real life example, the talk explains all the benefits of having a development process that brings real control over javascript codebase. A deep analysis of developer and webapps needs and of the tools that fit those requirements.
Reactive Programming with JavaScript
Reactive Programming with JavaScriptCodemotion "Reactive Programming with JavaScript" by Giorgio Natili
JavaScript is an asynchronous and almost single-thread language. Learning how to manage its asynchronous nature is perhaps the most important part of becoming an effective JavaScript programmer. Reactive programming tools in JavaScript provide a powerful way of “wrapping” the asynchronous callbacks into a more readable and maintainable code base. In this talk, I'll highlight the pros and cons of different reactive programming approaches and practices by demonstrating how to use Redux and Angular 2.x as the building blocks of a scalable architecture for your web app.
How To Use Selenium Successfully (Java Edition)
How To Use Selenium Successfully (Java Edition)Sauce Labs Dave Haeffner, a Selenium expert and active member of the Selenium project, steps through the why, how, and what of Selenium (the open-source automated web-testing tool for functional testing).
He also discusses how to start from nothing and build out a well-factored, maintainable, resilient, fast and scalable set of tests in Java. These will test your app across all of the browsers you care about, while exercising relevant functionality that matters to your business.
hindi news
hindi newsBreaking News of India Hindi News: ABP News covers latest news from India in Hindi & Top Breaking headlines on Politics, Current Affairs in India & World, Business, Bollywood News, Sports, Entertainment, Health & Cricket. http://breakingnewsofindia.com
Introduction to JavaScript Programming
Introduction to JavaScript ProgrammingCollaboration Technologies Interpreted programming or scripting language from Netscape.
Easier to code than the compiled languages like C and C++.
Lightweight and most commonly used script in web pages.
Allow client-side user to interact and create dynamic pages.
Cross-platform and object-oriented scripting language.
Most popular programming language in the world.
Functional Programming in JavaScript
Functional Programming in JavaScriptTroy Miles JavaScript is arguably the most popular language in the world. It runs in the browser, on the server, on mobile devices, and even powers the Internet of things. In spite of being completely ubiquitous, JavaScript is also the most hated language on the planet.
Unlike other programming languages, JavaScript straddles the line between imperative, object-oriented languages and functional ones. It was originally designed to be a version of the Scheme language for the browser. Which begs the questions, what if we programmed JavaScript functionally?
In this session, we will take a well-known programming problem and first implemented imperatively, then progressively make it more functional. Along the way, we will discuss what makes a language functional.
Best of all we will just use the latest version of JavaScript, ES-2015. No need for any additional libraries. So if you are looking for a different way to code JS, or only curious to learn a bit more about FP, please join us.
Ad
Similar to Object oriented programming in JavaScript (20)
Object Oriented Javascript part2
Object Oriented Javascript part2Usman Mehmood The document provides an overview of object-oriented JavaScript, including:
- JavaScript is a prototype-based language that uses functions as classes rather than explicit classes
- Core objects like Math, Array, and String are included, and custom objects can be created
- Objects are instantiated using the new keyword, and properties and methods are defined on the prototype
- Inheritance is implemented by assigning an instance of the parent class to the child class
Javascript Object Oriented Programming
Javascript Object Oriented ProgrammingBunlong Van This document provides an overview of object-oriented programming concepts in JavaScript, including objects, classes, encapsulation, inheritance, and the prototype pattern. It explains how to create objects, define methods, extend objects through prototypes, implement inheritance through prototypal inheritance and mixins, and use the module pattern to create private variables and functions within objects.
JavaScript - Chapter 8 - Objects
JavaScript - Chapter 8 - ObjectsWebStackAcademy In JavaScript, almost "everything" is an object.
-Booleans can be objects (if defined with the new keyword)
-Numbers can be objects (if defined with the new keyword)
-Strings can be objects (if defined with the new keyword)
-Dates are always objects
-Maths are always objects
-Regular expressions are always objects
-Arrays are always objects
-Functions are always objects
-Objects are always objects
Object Oriented Javascript
Object Oriented JavascriptThennarasan Shanmugam The document is a presentation on object oriented JavaScript. It discusses object notations including object constructors and object literals. It covers object properties including data properties, accessor properties, and defining multiple properties. It explains object creation patterns like the factory pattern, constructor pattern, and prototype pattern. It provides details on prototypes including how they work, the prototype chain, and the combination constructor prototype pattern used to address issues with prototypes.
Object oriented javascript
Object oriented javascriptShah Jalal This presentation will starts with an Introduction to object-oriented programming. And presentation main objective is to create javascript object and parse it in different way.
Javascript under the hood 2
Javascript under the hood 2Thang Tran Duc Javascript Under The Hood 2 ~ Object Oriented Javascript ~
Demystifying Javascript's function constructor, new keyword, prototype.
Object Oriented fundamental in Javascript
Object Oriented Programming in JavaScript
Object Oriented Programming in JavaScriptzand3rs The document provides an overview of object-oriented programming concepts in JavaScript, including:
- JavaScript uses prototype-based inheritance rather than classes, with functions serving as constructors.
- Objects inherit properties and methods from other objects via their prototype chain.
- Custom objects are defined with constructor functions that set properties and methods.
- Inheritance allows creating subclasses that inherit from superclasses. Methods can be overridden.
- Encapsulation involves exposing an object's data through getter/setter methods rather than direct access.
- Superclass members can be accessed in subclasses through calling the superclass constructor or methods.
- Constructor arguments are passed to subclasses by applying the superclass constructor.
JavaScript Object Oriented Programming Cheat Sheet
JavaScript Object Oriented Programming Cheat SheetHDR1001 This document discusses object-oriented programming in JavaScript. It covers built-in objects like Object, Function, and Array. It also discusses creating custom objects using constructor functions and prototypes. Constructor functions allow initializing object state, while prototypes allow defining shared object behavior. JavaScript uses prototypal inheritance, where an object inherits directly from another object instance.
Beginning Object-Oriented JavaScript
Beginning Object-Oriented JavaScriptStoyan Stefanov Slides from my "Object-oriented JavaScript" presentation at CSDN (China Software Developers Network), Beijing, December 2008
Object Oriented Programming In JavaScript
Object Oriented Programming In JavaScriptForziatech This document provides an overview of object oriented programming concepts in JavaScript. It discusses how JavaScript supports OOP through prototypes, functions acting as classes, and constructor functions to initialize objects. The document also covers data types in JavaScript, error handling using try/catch blocks, and techniques to improve performance such as reducing DOM access and unnecessary variables. It provides examples of implementing inheritance, abstraction, polymorphism, and other OOP principles in JavaScript.
Jscript part2
Jscript part2Girish Srivastava The document discusses object-oriented programming concepts like classes, objects, inheritance, and polymorphism. It provides examples of defining classes with members like properties and methods. Classes can inherit from other classes and override methods. The document also discusses prototype-based objects in JavaScript using constructor functions. Constructors can initialize objects with properties and inheritance allows objects to share common properties and methods.
Javascript Prototypal Inheritance - Big Picture
Javascript Prototypal Inheritance - Big PictureManish Jangir Are you still confused about what the prototypes really are in Javascript. Read the slides from the very begining, you will have a very clear picture about inheritance in Javascript. If you have any questions, please leave a comment. I will try to clarify that thing.
JavaScript Inheritance
JavaScript InheritanceJussi Pohjolainen The document discusses JavaScript inheritance. It explains that JavaScript uses prototype-based inheritance rather than class-based inheritance. It provides examples of how to implement inheritance by linking object prototypes together through the __proto__ property or Object.create method. Functions in JavaScript have a prototype property that is used to inherit properties and methods onto objects created with new.
Prototype 120102020133-phpapp02
Prototype 120102020133-phpapp02plutoone TestTwo this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality score, this is to check virality scor
JavaScript Essentials
JavaScript EssentialsTriphon Statkov This document provides an overview of a JavaScript training presentation. It discusses:
- The presenter and their background in software development and TV apps.
- What topics will be covered, including JavaScript principles, vanilla JS, becoming JS ninjas, and specific concepts like prototypes, types, scope, and patterns.
- Benefits of learning JavaScript like it being the language of the web and used for both frontend and backend development.
- Interesting facts about the history and creation of JavaScript.
- Primitive types like strings, numbers, booleans being similar to pizza ingredients, and object types being able to contain other values.
- Syntax for objects, properties, methods, and the prototype
Javascript tid-bits
Javascript tid-bitsDavid Atchley An introductory presentation I'm doing at my workplace for other developers. This is geared toward programmers that are very new to javascript and covers some basics, but focuses on Functions, Objects and prototypal inheritance ideas.
Object oriented programming
Object oriented programmingmsneha Object-Oriented Programming with JavaScript uses objects to design applications. Objects contain data fields and methods to perform tasks. JavaScript supports OOP through functions that act as classes from which object instances can be created. Key OOP concepts in JavaScript include classes/functions, objects/instances, constructors, properties, methods, and inheritance where a child class can inherit from a parent class.
Function-and-prototype defined classes in JavaScript
Function-and-prototype defined classes in JavaScriptHong Langford Objects and prototypes; Student-Grade example; this keyword; Constructor function; How does the new operator work in JavaScript; Inheritance with the prototype chain; The instanceof operator in JavaScript
Ad
Recently uploaded (20)
AI Agents in Logistics and Supply Chain Applications Benefits and Implementation
AI Agents in Logistics and Supply Chain Applications Benefits and ImplementationChristine Shepherd AI agents are reshaping logistics and supply chain operations by enabling automation, predictive insights, and real-time decision-making across key functions such as demand forecasting, inventory management, procurement, transportation, and warehouse operations. Powered by technologies like machine learning, NLP, computer vision, and robotic process automation, these agents deliver significant benefits including cost reduction, improved efficiency, greater visibility, and enhanced adaptability to market changes. While practical use cases show measurable gains in areas like dynamic routing and real-time inventory tracking, successful implementation requires careful integration with existing systems, quality data, and strategic scaling. Despite challenges such as data integration and change management, AI agents offer a strong competitive edge, with widespread industry adoption expected by 2025.
Jira Administration Training – Day 1 : Introduction
Jira Administration Training – Day 1 : IntroductionRavi Teja This presentation covers the basics of Jira for beginners. Learn how Jira works, its key features, project types, issue types, and user roles. Perfect for anyone new to Jira or preparing for Jira Admin roles.
Down the Rabbit Hole – Solving 5 Training Roadblocks
Down the Rabbit Hole – Solving 5 Training RoadblocksRustici Software Feeling stuck in the Matrix of your training technologies? You’re not alone. Managing your training catalog, wrangling LMSs and delivering content across different tools and audiences can feel like dodging digital bullets. At some point, you hit a fork in the road: Keep patching things up as issues pop up… or follow the rabbit hole to the root of the problems.
Good news, we’ve already been down that rabbit hole. Peter Overton and Cameron Gray of Rustici Software are here to share what we found. In this webinar, we’ll break down 5 training roadblocks in delivery and management and show you how they’re easier to fix than you might think.
TimeSeries Machine Learning - PyData London 2025
TimeSeries Machine Learning - PyData London 2025Suyash Joshi Timeseries Machine Learning - forecasting and anomaly detection with InfluxDB
Azure vs AWS Which Cloud Platform Is Best for Your Business in 2025
Azure vs AWS Which Cloud Platform Is Best for Your Business in 2025Infrassist Technologies Pvt. Ltd. Azure vs. AWS is a common comparison when businesses evaluate cloud platforms for performance, flexibility, and cost-efficiency.
Data Virtualization: Bringing the Power of FME to Any Application
Data Virtualization: Bringing the Power of FME to Any ApplicationSafe Software Imagine building web applications or dashboards on top of all your systems. With FME’s new Data Virtualization feature, you can deliver the full CRUD (create, read, update, and delete) capabilities on top of all your data that exploit the full power of FME’s all data, any AI capabilities. Data Virtualization enables you to build OpenAPI compliant API endpoints using FME Form’s no-code development platform.
In this webinar, you’ll see how easy it is to turn complex data into real-time, usable REST API based services. We’ll walk through a real example of building a map-based app using FME’s Data Virtualization, and show you how to get started in your own environment – no dev team required.
What you’ll take away:
-How to build live applications and dashboards with federated data
-Ways to control what’s exposed: filter, transform, and secure responses
-How to scale access with caching, asynchronous web call support, with API endpoint level security.
-Where this fits in your stack: from web apps, to AI, to automation
Whether you’re building internal tools, public portals, or powering automation – this webinar is your starting point to real-time data delivery.
ELNL2025 - Unlocking the Power of Sensitivity Labels - A Comprehensive Guide....
ELNL2025 - Unlocking the Power of Sensitivity Labels - A Comprehensive Guide....Jasper Oosterveld Sensitivity labels, powered by Microsoft Purview Information Protection, serve as the foundation for classifying and protecting your sensitive data within Microsoft 365. Their importance extends beyond classification and play a crucial role in enforcing governance policies across your Microsoft 365 environment. Join me, a Data Security Consultant and Microsoft MVP, as I share practical tips and tricks to get the full potential of sensitivity labels. I discuss sensitive information types, automatic labeling, and seamless integration with Data Loss Prevention, Teams Premium, and Microsoft 365 Copilot.
Your startup on AWS - How to architect and maintain a Lean and Mean account
Your startup on AWS - How to architect and maintain a Lean and Mean accountangelo60207 Prevent infrastructure costs from becoming a significant line item on your startup’s budget! Serial entrepreneur and software architect Angelo Mandato will share his experience with AWS Activate (startup credits from AWS) and knowledge on how to architect a lean and mean AWS account ideal for budget minded and bootstrapped startups. In this session you will learn how to manage a production ready AWS account capable of scaling as your startup grows for less than $100/month before credits. We will discuss AWS Budgets, Cost Explorer, architect priorities, and the importance of having flexible, optimized Infrastructure as Code. We will wrap everything up discussing opportunities where to save with AWS services such as S3, EC2, Load Balancers, Lambda Functions, RDS, and many others.
Boosting MySQL with Vector Search -THE VECTOR SEARCH CONFERENCE 2025 .pdf
Boosting MySQL with Vector Search -THE VECTOR SEARCH CONFERENCE 2025 .pdfAlkin Tezuysal As the demand for vector databases and Generative AI continues to rise, integrating vector storage and search capabilities into traditional databases has become increasingly important. This session introduces the *MyVector Plugin*, a project that brings native vector storage and similarity search to MySQL. Unlike PostgreSQL, which offers interfaces for adding new data types and index methods, MySQL lacks such extensibility. However, by utilizing MySQL's server component plugin and UDF, the *MyVector Plugin* successfully adds a fully functional vector search feature within the existing MySQL + InnoDB infrastructure, eliminating the need for a separate vector database. The session explains the technical aspects of integrating vector support into MySQL, the challenges posed by its architecture, and real-world use cases that showcase the advantages of combining vector search with MySQL's robust features. Attendees will leave with practical insights on how to add vector search capabilities to their MySQL systems.
“How Qualcomm Is Powering AI-driven Multimedia at the Edge,” a Presentation f...
“How Qualcomm Is Powering AI-driven Multimedia at the Edge,” a Presentation f...Edge AI and Vision Alliance For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2025/06/how-qualcomm-is-powering-ai-driven-multimedia-at-the-edge-a-presentation-from-qualcomm/
Ning Bi, Vice President of Engineering at Qualcomm Technologies, presents the “How Qualcomm Is Powering AI-driven Multimedia at the Edge” tutorial at the May 2025 Embedded Vision Summit.
In this talk, Bi explores the evolution of multimedia processing at the edge, from simple early use cases such as audio and video processing powered by algorithm-centric approaches to modern sophisticated capabilities such as digital human avatars that are transmitted over the communication channel, powered by data-driven AI. He explains how Qualcomm is applying AI and generative AI technologies on the edge to enrich computer vision for new and high-quality visual solutions. He also shows how Qualcomm enables a broad range of OEMs, ODMs and third-party developers to harness innovative technologies via initiatives such as the Qualcomm AI Hub, which provides a library of optimized machine learning models to enable developers to quickly incorporate AI into their applications.
LSNIF: Locally-Subdivided Neural Intersection Function
LSNIF: Locally-Subdivided Neural Intersection FunctionTakahiro Harada Neural representations have shown the potential to accelerate ray casting in a conventional ray-tracing-based rendering pipeline. We introduce a novel approach called Locally-Subdivided Neural Intersection Function (LSNIF) that replaces bottom-level BVHs used as traditional geometric representations with a neural network. Our method introduces a sparse hash grid encoding scheme incorporating geometry voxelization, a scene-agnostic training data collection, and a tailored loss function. It enables the network to output not only visibility but also hit-point information and material indices. LSNIF can be trained offline for a single object, allowing us to use LSNIF as a replacement for its corresponding BVH. With these designs, the network can handle hit-point queries from any arbitrary viewpoint, supporting all types of rays in the rendering pipeline. We demonstrate that LSNIF can render a variety of scenes, including real-world scenes designed for other path tracers, while achieving a memory footprint reduction of up to 106.2x compared to a compressed BVH.
https://arxiv.org/abs/2504.21627
Scaling GenAI Inference From Prototype to Production: Real-World Lessons in S...
Scaling GenAI Inference From Prototype to Production: Real-World Lessons in S...Anish Kumar Presented by: Anish Kumar
LinkedIn: https://www.linkedin.com/in/anishkumar/
This lightning talk dives into real-world GenAI projects that scaled from prototype to production using Databricks’ fully managed tools. Facing cost and time constraints, we leveraged four key Databricks features—Workflows, Model Serving, Serverless Compute, and Notebooks—to build an AI inference pipeline processing millions of documents (text and audiobooks).
This approach enables rapid experimentation, easy tuning of GenAI prompts and compute settings, seamless data iteration and efficient quality testing—allowing Data Scientists and Engineers to collaborate effectively. Learn how to design modular, parameterized notebooks that run concurrently, manage dependencies and accelerate AI-driven insights.
Whether you're optimizing AI inference, automating complex data workflows or architecting next-gen serverless AI systems, this session delivers actionable strategies to maximize performance while keeping costs low.
Establish Visibility and Manage Risk in the Supply Chain with Anchore SBOM
Establish Visibility and Manage Risk in the Supply Chain with Anchore SBOMAnchore Over 70% of any given software application consumes open source software (most likely not even from the original source) and only 15% of organizations feel confident in their risk management practices.
With the newly announced Anchore SBOM feature, teams can start safely consuming OSS while mitigating security and compliance risks. Learn how to import SBOMs in industry-standard formats (SPDX, CycloneDX, Syft), validate their integrity, and proactively address vulnerabilities within your software ecosystem.
Soulmaite review - Find Real AI soulmate review
Soulmaite review - Find Real AI soulmate reviewSoulmaite Looking for an honest take on Soulmaite? This Soulmaite review covers everything you need to know—from features and pricing to how well it performs as a real AI soulmate. We share how users interact with adult chat features, AI girlfriend 18+ options, and nude AI chat experiences. Whether you're curious about AI roleplay porn or free AI NSFW chat with no sign-up, this review breaks it down clearly and informatively.
6th Power Grid Model Meetup - 21 May 2025
6th Power Grid Model Meetup - 21 May 2025DanBrown980551 6th Power Grid Model Meetup
Join the Power Grid Model community for an exciting day of sharing experiences, learning from each other, planning, and collaborating.
This hybrid in-person/online event will include a full day agenda, with the opportunity to socialize afterwards for in-person attendees.
If you have a hackathon proposal, tell us when you register!
About Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
MCP vs A2A vs ACP: Choosing the Right Protocol | Bluebash
MCP vs A2A vs ACP: Choosing the Right Protocol | BluebashBluebash Understand the differences between MCP vs A2A vs ACP agent communication protocols and how they impact AI agent interactions. Get expert insights to choose the right protocol for your system. To learn more, click here: https://www.bluebash.co/blog/mcp-vs-a2a-vs-acp-agent-communication-protocols/
cnc-drilling-dowel-inserting-machine-drillteq-d-510-english.pdf
cnc-drilling-dowel-inserting-machine-drillteq-d-510-english.pdfAmirStern2 CNC מכונות קידוח drillteq d-510
Azure vs AWS Which Cloud Platform Is Best for Your Business in 2025
Azure vs AWS Which Cloud Platform Is Best for Your Business in 2025Infrassist Technologies Pvt. Ltd.
“How Qualcomm Is Powering AI-driven Multimedia at the Edge,” a Presentation f...
“How Qualcomm Is Powering AI-driven Multimedia at the Edge,” a Presentation f...Edge AI and Vision Alliance
Object oriented programming in JavaScript
- 1. OBJECT ORIENTED PROGRAMMING IN JAVASCRIPT (OOJS) -- Aditya Majety FreeCodeCamp Lightning Talk 14-Mar-2017
- 2. AGENDA Object Oriented Programming Objects in JavaScript Access Object Properties Set Object Properties ‘this’ keyword Prototypes Prototypal Inheritance ECMAScript6
- 3. OBJECT ORIENTED PROGRAMMING Object Oriented Programming – A programming paradigm where we use Objects to model real world things. Object – Collection of related data and/or functionality. (Encapsulation) Variables and Functions — are called properties and methods when they are inside objects.
- 4. OBJECTS IN JAVASCRIPT Ways of creating an Object in JavaScript 1. var myObj1 = { }; 2. var myObj2 = new Object(); 3. var myObj3 = function () { var obj = {}; return obj;}; 4. function MyObj4() { this.myVar = ‘’; }; The constructor function is JavaScript's version of a class. (No: 4) A constructor function name usually starts with a capital letter — this convention is used to make constructor functions easier to recognize in code.
- 5. OBJECTS IN JAVASCRIPT (CONTD..) Object Format var objectName = { member1Name: member1Value, member2Name: member2Value, member3Name: member3Value } Each name/value pair must be separated by a comma The name and value in each case are separated by a colon Sample Object var person = { name : { first: 'Bob', last: 'Smith‘ }, age: 32, gender: 'male', greeting: function() { alert('Hi! I am ' + this.name[0]); } };
- 6. ACCESS OBJECT PROPERTIES Dot Notation person.age, person.gender Person.name.first, person.name.last Bracket Notation Using Property: person[‘age’], person[‘gender’] person[‘name’][‘first’], person[‘name’][‘last’] Using Index: person[0], person[1] Person[0][‘first’], Person[0].first Difference Dot notation can only accept a literal member name, not a variable value pointing to a name
- 7. SET OBJECT PROPERTIES person.age = 45 person['name']['last'] = 'Cratchit‘ We can also create new members. person['eyes'] = 'hazel' person.farewell = function() { alert("Bye everybody!") }
- 8. ‘THIS’ KEYWORD The this keyword refers to the current object the code is being written inside. Eg. Two different person object instances may have different names, but will want to use their own name when saying their greeting. Person1.greeting() -> ‘Hi I’m Chris’ Person2.greeting() -> ‘Hi I’m Brian’
- 9. PROTOTYPE We have to understand Prototypes to understand Inheritance. Each object has a prototype object, which acts as a template object that it inherits methods and properties from. Prototypes are the mechanism by which JavaScript objects inherit features from one another. Prototype Chain : An object's prototype object may also have a prototype object, which it inherits methods and properties from, and so on In classic OOP, classes are defined, then when object instances are created all the properties and methods defined on the class are copied over to the instance. In JavaScript, they are not copied over — instead, a link is made between the object instance and its constructor (a link in the prototype chain), and the properties and methods are found in the constructor by walking up the chain.
- 10. PROTOTYPAL INHERITANCE How do we create an Object in JavaScript that inherits from another Object? (other than built-in Objects) Only Constructors have prototype property. Object instances do not have it. Steps to Inherit from another Object Create the Main constructor Create the Child constructor Set Prototype Set Constructor Reference
- 11. PROTOTYPAL INHERITANCE CONTD.. Step 1 Step 2 Step 3 Step 4
- 12. ECMASCRIPT6 Equal to Constructor Function Create a Sub Class
- 13. THANK YOU