What is JavaScript? Edureka
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The document discusses the origin and fundamental aspects of JavaScript, highlighting its development by Brendan Eich for Netscape Communications. It explains that JavaScript is a high-level, interpreted programming language that enhances web interactivity and has capabilities beyond Java. The document also outlines key JavaScript concepts including variables, data types, functions, and control structures.
![www.edureka.co
JAVASCRIPT FUNDAMENTALS
Variables
Constants
Data Types
Objects
Arrays
Functions
Conditional Statements
Loops
Switch Case
0 1 2 3 4
Syntax:
1
2
let arr[ ];
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What is JavaScript? Edureka
- 1. Copyright © 2017, edureka and/or its affiliates. All rights reserved.
- 2. www.edureka.co ORIGIN OF JAVASCRIPT WHAT IS JAVASCRIPT? WHAT CAN JAVASCRIPT DO? JAVASCRIPT FRAMEWORKS HTML VS CSS VS JAVASCRIPT BENEFITS OF JAVASCRIPT JAVASCRIPT FUNDAMENTALS
- 4. Netscape Communications had the vision that the web needed a way to become more dynamic. Animations, interaction and other forms of small automation should be part of the web of the future. www.edureka.co
- 5. This is when Brendan Eich, father of JavaScript, came into the picture. Eich was contracted by Netscape Communications to develop a "Scheme for the browser". www.edureka.co
- 6. The idea at the time was that Java was not suited for the type of audience that would consume Mocha: scripters, amateurs, designers. Java was just too big for the role. www.edureka.co
- 7. www.edureka.co The idea at the time was that Java was not suited for the type of audience that would consume Mocha: scripters, amateurs, designers. Java was just too big for the role.
- 8. The web needed something easy to grasp syntactically, dynamic, to reduce verbosity and speed up development, and powerful. www.edureka.co
- 10. www.edureka.co JavaScript is a high level, interpreted, programming language used to make web pages more interactive. It let’s you implement complex and beautiful things/design on web pages.
- 11. www.edureka.co JavaScript is a high level, interpreted, programming language used to make web pages more interactive. It let’s you implement complex and beautiful things/design on web pages.
- 12. www.edureka.co
- 13. JavaScript has nothing to do with Java. Then why is it called “Java” Script? ScriptingLanguage¬JAVA! www.edureka.co
- 14. It supports polymorphism, encapsulation and to some extent inheritance as well. Object-basedScriptingLanguage www.edureka.co
- 15. JavaScript can execute not only in the browser but also on the server and any device which has a JavaScript Engine. JavaScriptrunsinaBrowser www.edureka.co
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- 18. www.edureka.co Web Application Smart Watches Games Website
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- 26. www.edureka.co JAVASCRIPT FUNDAMENTALS Variables Constants Data Types Objects Arrays Functions Conditional Statements Loops Switch Case
- 27. www.edureka.co JAVASCRIPT FUNDAMENTALS Variables Constants Data Types Objects Arrays Functions Conditional Statements Loops Switch Case Memory location Variable name Syntax: 1 let age; 2 age = 22;
- 28. www.edureka.co JAVASCRIPT FUNDAMENTALS Variables Constants Data Types Objects Arrays Functions Conditional Statements Loops Switch Case Syntax: 1 2 const mybirthday; mybirthday = ‘03.08.1996’ ; Examples of constants
- 29. www.edureka.co JAVASCRIPT FUNDAMENTALS Variables Constants Data Types Objects Arrays Functions Conditional Statements Loops Switch Case Strings Boolean TRUE FALSE Numbers NullUndefined
- 30. www.edureka.co JAVASCRIPT FUNDAMENTALS Variables Constants Data Types Objects Arrays Functions Conditional Statements Loops Switch Case Name Age Eye-colour Syntax: 1 let object1 = { };
- 31. www.edureka.co JAVASCRIPT FUNDAMENTALS Variables Constants Data Types Objects Arrays Functions Conditional Statements Loops Switch Case 0 1 2 3 4 Syntax: 1 2 let arr[ ]; let arr = new Array( ) ;
- 32. www.edureka.co JAVASCRIPT FUNDAMENTALS Variables Constants Data Types Objects Arrays Functions Conditional Statements Loops Switch Case Functions Predefined Functions User Defined Functions Syntax: 1 2 3 function greetings( ) { alert(‘ Hello everyone! ‘); }
- 33. www.edureka.co JAVASCRIPT FUNDAMENTALS Variables Constants Data Types Objects Arrays Functions Conditional Statements Loops Switch Case If code End Start True Condition False Exit Syntax: 1 2 3 if(condition) { statement; }
- 34. www.edureka.co JAVASCRIPT FUNDAMENTALS Variables Constants Data Types Objects Arrays Functions Conditional Statements Loops Switch Case Loops do whilewhilefor
- 35. www.edureka.co JAVASCRIPT FUNDAMENTALS Variables Constants Data Types Objects Arrays Functions Conditional Statements Loops Switch Case Start Switch expression End Case 1 Case 2 Default Code block 1 break; Code block 2 break; Default statement False False
- 36. Copyright © 2017, edureka and/or its affiliates. All rights reserved. www.edureka.co
- 37. www.edureka.co