Understanding Java 8 Lambdas and Streams - Part 1 - Lambda Calculus, Lambda Expressions, Syntactic Sugar, First Class Functions
15 likes4,491 views
Quick summary of the talk: * We start playing a bit with integer streams * We soon come across lambda expressions * We introduce the Lambda Calculus and show that it is Turing Complete. * We look at how Java lambda expressions relate to lambda Calculus ones * We look at how the two differ * We ask ourselves: are functions 1st class citizens in Java 8? * We look at what ‘1st class functions‘ means in Haskell and Scala * We compare Java’s approach to ‘1st class functions’ with Scala’s * We ask ourselves: o are Java lambda expressions objects? o are Java lambda expressions syntactic sugar for anonymous instances of functional interfaces? o Is it possible to write a recursive lambda expression in Java 8? * We get answers to those questions
1 of 344
Downloaded 197 times
Ad
Recommended
Functional programming with Java 8
Functional programming with Java 8LivePerson In this Meetup Victor Perepelitsky - R&D Technical Leader at LivePerson leading the 'Real Time Event Processing Platform' team , will talk about Java 8', 'Stream API', 'Lambda', and 'Method reference'.
Victor will clarify what functional programming is and how can you use java 8 in order to create better software.
Victor will also cover some pain points that Java 8 did not solve regarding functionality and see how you can work around it.
Week 5 java script functions
Week 5 java script functionsbrianjihoonlee The document provides an introduction to JavaScript functions. It explains that functions allow code to be reused by defining reusable blocks of code called functions. It provides examples of simple functions that check if a number is greater than or equal to 21, and adds additional time to a number of minutes. The document emphasizes that functions are like buttons on a microwave that each serve a specific purpose. It encourages readers to try out functions on their own.
Functional Programming in Java 8 - Exploiting Lambdas
Functional Programming in Java 8 - Exploiting LambdasGanesh Samarthyam This document introduces lambda functions and functional programming in Java 8. It defines lambda functions as anonymous functions without a name. Functional programming views programs as functions that accept inputs and produce outputs. Lambda functions and streams help enable a more functional approach to programming in Java. Parallel streams can improve performance by processing elements concurrently.
2java Oop
2java OopAdil Jafri This document provides an introduction to object-oriented programming concepts in Java. It discusses similarities and differences between Java and C++, object-oriented nomenclature, instance variables, methods, and constructors. Instance variables are fields that belong to objects of a class. Methods are functions defined within classes that can access and modify instance variables. Constructors initialize new objects and are called when objects are created using the new operator. The document provides examples to illustrate these concepts and highlights key differences between Java and C++ regarding object-oriented programming.
2ndQuarter2ndMeeting(formatting number)
2ndQuarter2ndMeeting(formatting number)Esmeraldo Jr Guimbarda This document discusses various options for formatting numbers in Microsoft Excel. It describes number formatting categories like General, Number, Currency, Accounting, Date, Time, Percentage, Fraction, Scientific, and Text. It provides examples of how numbers will appear formatted under each of these options. The document also includes step-by-step instructions for formatting a list of expenses in a sample Excel worksheet using the Currency number format with two decimal places and a PHP symbol.
Functional Programming in Java
Functional Programming in JavaNarendran Solai Sridharan “Lambdas in JAVA 8 is not for what they can do, It is about how we write Program”
It enables Functional Programming, It Adds a New nucleotides in the DNA of Java.
There is a Change in “The Climate” to change our Ways.
Lambda functions in java 8
Lambda functions in java 8James Brown This document discusses lambda functions and new features coming to Java 8, including lambda functions (anonymous functions), method references, default methods in interfaces, and functional interfaces with a single abstract method. It provides examples of lambda functions and explores how they can be used for filtering, mapping, chaining, and iterating over collections.
java script functions, classes
java script functions, classesVijay Kalyan The document discusses JavaScript functions, classes, and regular expressions. It covers:
1) How functions are defined and invoked in JavaScript and the different ways functions can be invoked like as methods, constructors, or indirectly.
2) How classes are implemented in JavaScript using prototypes and constructor functions to define behaviors shared across objects.
3) How regular expressions can be used to describe patterns in strings using special characters like character classes, repetition, and other techniques.
TM 2nd qtr-3ndmeeting(java script-functions)
TM 2nd qtr-3ndmeeting(java script-functions)Esmeraldo Jr Guimbarda This document provides instructions for creating a basic HTML file that calculates speed based on distance and time inputs. It outlines 15 steps to set up the HTML skeleton, add input fields for distance and time, create a button to call the ComputeSpeed function, and use a script to calculate and display the speed when the button is clicked. The instructions are for a learning activity to demonstrate functions in JavaScript.
Java Script - Object-Oriented Programming
Java Script - Object-Oriented Programmingintive Introduction to Java Script object-oriented programming presented by Piotr on meet.js meetings in Lublin (Feb-2015) and Szczecin (Mar-2015).
02 java programming basic
02 java programming basicZeeshan-Shaikh Java is a popular programming language used for developing applications, especially web applications. It follows specific syntax rules and uses object-oriented programming. Key points covered in the document include the basic structure of a Java program, popular programming languages, tools used for Java development, and an overview of object-oriented concepts like classes, objects, methods, and inheritance.
Fp java8
Fp java8Yanai Franchi The document discusses functional programming concepts in Java 8 such as lambda expressions, streams, and functional interfaces. It provides examples of filtering, mapping, reducing, and grouping collections of objects in an imperative vs declarative style using streams. Key points include how lambda expressions allow passing functions as arguments, default methods enable new functionality in interfaces, and streams support parallel processing and aggregate operations on data sources.
Functions in javascript
Functions in javascriptbaabtra.com - No. 1 supplier of quality freshers The document provides information about a mentoring program run by Baabtra-Mentoring Partner including a trainee's typing speed progress over 3 weeks, jobs applied to with current statuses, an introduction to functions in Javascript covering definitions, advantages, examples, and local and global variables. Contact details for Baabtra are also provided at the end.
JavaScript Functions 
JavaScript Functions Reem Alattas This document contains notes on JavaScript functions from a course. It discusses:
1) Functions allow breaking programs into modules for easier maintenance and debugging. Functions in JavaScript include predefined and programmer-defined methods.
2) Functions receive arguments, can call other functions in a hierarchical relationship, and may return values. Functions define local variables that do not exist outside the function.
3) Examples show defining and calling functions to square numbers, find the maximum of three values, and generate random numbers by scaling and shifting the output of Math.random().
Functional programming with Java 8
Functional programming with Java 8Talha Ocakçı Functional programming in Java 8 allows for:
1) The use of lambda expressions and streams for a more declarative programming style without iteration.
2) Functional interfaces like Function, Predicate, and Consumer along with lambda expressions enable function composition and chaining.
3) Features like immutable collections help reduce mutability and side effects, important aspects of functional programming.
Functional Javascript
Functional Javascriptguest4d57e6 The document discusses functional JavaScript programming. It introduces functional concepts like anonymous functions, binding functions to contexts, and enumerable functions. It provides examples of how to write functional code using these concepts like mapping over arrays with anonymous functions and filtering arrays. It also discusses structuring applications and provides an example code snippet for converting HTML elements.
JavaScript Functions
JavaScript FunctionsColin DeCarlo Functions being first-class citizens in JavaScript offers developers a tremendous amount power and
flexibilty. However, what good is all this power if you don't know how to harness it?
This talk will provide a thorough examination of JavaScript functions. Topics
that will be covered in this talk are:
* Functions are objects
* Execution Context and the Scope Chain
* Closures
* Modifying Context
* The Various Forms of Functions.
Attendees will leave this talk understanding the power of JavaScript functions and the knowledge to apply new
techiques that will make their JavaScript cleaner, leaner and more maintainable.
Java 8 Streams
Java 8 StreamsManvendra Singh This is a beginner's guide to Java 8 Lambdas, accompnied with executable code examples which you can find at https://github.com/manvendrasinghkadam/java8streams. Java 8 Streams are based on Lambdas, so this presentation assumes you know Lambdas quite well. If don't then please let me know I'll create another presentation regarding it with code examples. Lambdas are relatively easy to use and with the power of stream api you can do functional programming in Java right from start. This is very cool to be a Java programmer now.
Programming
ProgrammingSean Chia The document discusses different programming concepts including structured programming, object-oriented programming, data types, operators, control structures, and generations of programming languages. It provides examples of programming code in different languages and describes key differences between structured and object-oriented approaches.
Functional programming in java
Functional programming in javaJohn Ferguson Smart Limited Functional programming is all the rage. It can undoubtedly produce cleaner and more expressive code, but why switch to Scala or wait for Java 8? In fact, there are many ways to dramatically improve your Java code quality by using a more functional style today. This presentation discusses how techniques such as functional programming, using fluent APIs, and other clean coding practices can make your code more concise, more readable, and much easier to maintain. But more importantly, you will learn about libraries such as LambdaJ and Google Guava that make this possible today with your existing Java code base.
Productive Programming in Java 8 - with Lambdas and Streams 
Productive Programming in Java 8 - with Lambdas and Streams Ganesh Samarthyam The document provides an overview of lambda expressions and functional interfaces in Java 8. It discusses key concepts like lambda functions, built-in functional interfaces like Predicate and Consumer, and how they can be used with streams. Examples are provided to demonstrate using lambdas with built-in interfaces like Predicate to filter a stream and Consumer to forEach over a stream. The document aims to help readers get hands-on experience coding with lambdas and streams in Java 8.
Basic java for Android Developer
Basic java for Android DeveloperNattapong Tonprasert This document provides an introduction to basic Java concepts for Android development. It discusses installing the Java Development Kit, writing simple Java code including classes, objects, methods, and statements. It also covers Java fundamentals like conditionals, loops, encapsulation, and static variables.
Functional Programming In Java
Functional Programming In JavaAndrei Solntsev The document provides an overview of functional programming in Java. It discusses functional programming concepts like higher-order functions and avoiding side effects. It gives examples of functional-style code in Java for filtering lists and transforming objects. It also discusses how functional programming can be used to implement customizable business logic by passing functions as parameters and looking up functions through a dependency injection container.
Java 8 Lambda Expressions & Streams
Java 8 Lambda Expressions & StreamsNewCircle Training This document contains the slides for a presentation on Java 8 Lambdas and Streams. The presentation will cover lambdas, including their concept, syntax, functional interfaces, variable capture, method references, and default methods. It will also cover streams. The slides provide some incomplete definitions that will be completed during the presentation. Questions from attendees are welcome. A quick survey asks about past experience with lambdas and streams.
02 basic java programming and operators
02 basic java programming and operatorsDanairat Thanabodithammachari This document provides an overview of Module 02 - Basic Java Programming which covers basic Java programming concepts such as variables, data types, operators, classes, objects, and methods. It also discusses compiling and running Java applications from the command line and with an IDE. Hands-on labs are included to build a simple Java application with JDeveloper IDE, create a JAR file, and use JConsole to monitor a Java application.
Introduction to-programming
Introduction to-programmingBG Java EE Course This document provides an overview of the Java programming language, including its structure, keywords, data types, variables, operators, expressions, statements, and control flow structures. It discusses the structure of Java programs, including classes, packages, and the main method. It also covers Java APIs, documentation, errors, and examples of basic Java programs.
LinkedIn TBC JavaScript 100: Functions
LinkedIn TBC JavaScript 100: FunctionsAdam Crabtree This document discusses JavaScript functions. It covers function definitions, invocation patterns, the this keyword, and function methods like call, apply, and bind. Function definitions can be declared using the function keyword or assigned anonymously. Functions are first-class citizens that can be passed around and returned. Invocation patterns include direct invocation, method invocation, constructor invocation, and reflective invocation using call and apply. The this keyword is determined by the invocation pattern and bind can be used to set the this value.
Packages and interfaces
Packages and interfacesvanithaRamasamy This document discusses object oriented programming concepts in Java including packages, interfaces, and how they relate. It provides details on how to define and use packages to organize classes. Interfaces are introduced as a way to specify common behaviors without defining how they are implemented. The key points covered are how to define interfaces, implement interfaces in classes, access implementations through interface references, allow for partial implementations, and extend interfaces.
List Unfolding - 'unfold' as the Computational Dual of 'fold', and how 'unfol...
List Unfolding - 'unfold' as the Computational Dual of 'fold', and how 'unfol...Philip Schwarz In this deck we look at the following:
* how unfolding lists is the computational dual of folding lists
* different variants of the function for unfolding lists
* how they relate to the iterate function
Drawing Heighway’s Dragon - Part 4 - Interactive and Animated Dragon Creation
Drawing Heighway’s Dragon - Part 4 - Interactive and Animated Dragon CreationPhilip Schwarz Drawing Heighway’s Dragon - Part 4 - Interactive and Animated Dragon Creation
More Related Content
Viewers also liked (20)
TM 2nd qtr-3ndmeeting(java script-functions)
TM 2nd qtr-3ndmeeting(java script-functions)Esmeraldo Jr Guimbarda This document provides instructions for creating a basic HTML file that calculates speed based on distance and time inputs. It outlines 15 steps to set up the HTML skeleton, add input fields for distance and time, create a button to call the ComputeSpeed function, and use a script to calculate and display the speed when the button is clicked. The instructions are for a learning activity to demonstrate functions in JavaScript.
Java Script - Object-Oriented Programming
Java Script - Object-Oriented Programmingintive Introduction to Java Script object-oriented programming presented by Piotr on meet.js meetings in Lublin (Feb-2015) and Szczecin (Mar-2015).
02 java programming basic
02 java programming basicZeeshan-Shaikh Java is a popular programming language used for developing applications, especially web applications. It follows specific syntax rules and uses object-oriented programming. Key points covered in the document include the basic structure of a Java program, popular programming languages, tools used for Java development, and an overview of object-oriented concepts like classes, objects, methods, and inheritance.
Fp java8
Fp java8Yanai Franchi The document discusses functional programming concepts in Java 8 such as lambda expressions, streams, and functional interfaces. It provides examples of filtering, mapping, reducing, and grouping collections of objects in an imperative vs declarative style using streams. Key points include how lambda expressions allow passing functions as arguments, default methods enable new functionality in interfaces, and streams support parallel processing and aggregate operations on data sources.
Functions in javascript
Functions in javascriptbaabtra.com - No. 1 supplier of quality freshers The document provides information about a mentoring program run by Baabtra-Mentoring Partner including a trainee's typing speed progress over 3 weeks, jobs applied to with current statuses, an introduction to functions in Javascript covering definitions, advantages, examples, and local and global variables. Contact details for Baabtra are also provided at the end.
JavaScript Functions
JavaScript Functions Reem Alattas This document contains notes on JavaScript functions from a course. It discusses:
1) Functions allow breaking programs into modules for easier maintenance and debugging. Functions in JavaScript include predefined and programmer-defined methods.
2) Functions receive arguments, can call other functions in a hierarchical relationship, and may return values. Functions define local variables that do not exist outside the function.
3) Examples show defining and calling functions to square numbers, find the maximum of three values, and generate random numbers by scaling and shifting the output of Math.random().
Functional programming with Java 8
Functional programming with Java 8Talha Ocakçı Functional programming in Java 8 allows for:
1) The use of lambda expressions and streams for a more declarative programming style without iteration.
2) Functional interfaces like Function, Predicate, and Consumer along with lambda expressions enable function composition and chaining.
3) Features like immutable collections help reduce mutability and side effects, important aspects of functional programming.
Functional Javascript
Functional Javascriptguest4d57e6 The document discusses functional JavaScript programming. It introduces functional concepts like anonymous functions, binding functions to contexts, and enumerable functions. It provides examples of how to write functional code using these concepts like mapping over arrays with anonymous functions and filtering arrays. It also discusses structuring applications and provides an example code snippet for converting HTML elements.
JavaScript Functions
JavaScript FunctionsColin DeCarlo Functions being first-class citizens in JavaScript offers developers a tremendous amount power and
flexibilty. However, what good is all this power if you don't know how to harness it?
This talk will provide a thorough examination of JavaScript functions. Topics
that will be covered in this talk are:
* Functions are objects
* Execution Context and the Scope Chain
* Closures
* Modifying Context
* The Various Forms of Functions.
Attendees will leave this talk understanding the power of JavaScript functions and the knowledge to apply new
techiques that will make their JavaScript cleaner, leaner and more maintainable.
Java 8 Streams
Java 8 StreamsManvendra Singh This is a beginner's guide to Java 8 Lambdas, accompnied with executable code examples which you can find at https://github.com/manvendrasinghkadam/java8streams. Java 8 Streams are based on Lambdas, so this presentation assumes you know Lambdas quite well. If don't then please let me know I'll create another presentation regarding it with code examples. Lambdas are relatively easy to use and with the power of stream api you can do functional programming in Java right from start. This is very cool to be a Java programmer now.
Programming
ProgrammingSean Chia The document discusses different programming concepts including structured programming, object-oriented programming, data types, operators, control structures, and generations of programming languages. It provides examples of programming code in different languages and describes key differences between structured and object-oriented approaches.
Functional programming in java
Functional programming in javaJohn Ferguson Smart Limited Functional programming is all the rage. It can undoubtedly produce cleaner and more expressive code, but why switch to Scala or wait for Java 8? In fact, there are many ways to dramatically improve your Java code quality by using a more functional style today. This presentation discusses how techniques such as functional programming, using fluent APIs, and other clean coding practices can make your code more concise, more readable, and much easier to maintain. But more importantly, you will learn about libraries such as LambdaJ and Google Guava that make this possible today with your existing Java code base.
Productive Programming in Java 8 - with Lambdas and Streams
Productive Programming in Java 8 - with Lambdas and Streams Ganesh Samarthyam The document provides an overview of lambda expressions and functional interfaces in Java 8. It discusses key concepts like lambda functions, built-in functional interfaces like Predicate and Consumer, and how they can be used with streams. Examples are provided to demonstrate using lambdas with built-in interfaces like Predicate to filter a stream and Consumer to forEach over a stream. The document aims to help readers get hands-on experience coding with lambdas and streams in Java 8.
Basic java for Android Developer
Basic java for Android DeveloperNattapong Tonprasert This document provides an introduction to basic Java concepts for Android development. It discusses installing the Java Development Kit, writing simple Java code including classes, objects, methods, and statements. It also covers Java fundamentals like conditionals, loops, encapsulation, and static variables.
Functional Programming In Java
Functional Programming In JavaAndrei Solntsev The document provides an overview of functional programming in Java. It discusses functional programming concepts like higher-order functions and avoiding side effects. It gives examples of functional-style code in Java for filtering lists and transforming objects. It also discusses how functional programming can be used to implement customizable business logic by passing functions as parameters and looking up functions through a dependency injection container.
Java 8 Lambda Expressions & Streams
Java 8 Lambda Expressions & StreamsNewCircle Training This document contains the slides for a presentation on Java 8 Lambdas and Streams. The presentation will cover lambdas, including their concept, syntax, functional interfaces, variable capture, method references, and default methods. It will also cover streams. The slides provide some incomplete definitions that will be completed during the presentation. Questions from attendees are welcome. A quick survey asks about past experience with lambdas and streams.
02 basic java programming and operators
02 basic java programming and operatorsDanairat Thanabodithammachari This document provides an overview of Module 02 - Basic Java Programming which covers basic Java programming concepts such as variables, data types, operators, classes, objects, and methods. It also discusses compiling and running Java applications from the command line and with an IDE. Hands-on labs are included to build a simple Java application with JDeveloper IDE, create a JAR file, and use JConsole to monitor a Java application.
Introduction to-programming
Introduction to-programmingBG Java EE Course This document provides an overview of the Java programming language, including its structure, keywords, data types, variables, operators, expressions, statements, and control flow structures. It discusses the structure of Java programs, including classes, packages, and the main method. It also covers Java APIs, documentation, errors, and examples of basic Java programs.
LinkedIn TBC JavaScript 100: Functions
LinkedIn TBC JavaScript 100: FunctionsAdam Crabtree This document discusses JavaScript functions. It covers function definitions, invocation patterns, the this keyword, and function methods like call, apply, and bind. Function definitions can be declared using the function keyword or assigned anonymously. Functions are first-class citizens that can be passed around and returned. Invocation patterns include direct invocation, method invocation, constructor invocation, and reflective invocation using call and apply. The this keyword is determined by the invocation pattern and bind can be used to set the this value.
Packages and interfaces
Packages and interfacesvanithaRamasamy This document discusses object oriented programming concepts in Java including packages, interfaces, and how they relate. It provides details on how to define and use packages to organize classes. Interfaces are introduced as a way to specify common behaviors without defining how they are implemented. The key points covered are how to define interfaces, implement interfaces in classes, access implementations through interface references, allow for partial implementations, and extend interfaces.
More from Philip Schwarz (20)
List Unfolding - 'unfold' as the Computational Dual of 'fold', and how 'unfol...
List Unfolding - 'unfold' as the Computational Dual of 'fold', and how 'unfol...Philip Schwarz In this deck we look at the following:
* how unfolding lists is the computational dual of folding lists
* different variants of the function for unfolding lists
* how they relate to the iterate function
Drawing Heighway’s Dragon - Part 4 - Interactive and Animated Dragon Creation
Drawing Heighway’s Dragon - Part 4 - Interactive and Animated Dragon CreationPhilip Schwarz Drawing Heighway’s Dragon - Part 4 - Interactive and Animated Dragon Creation
The Nature of Complexity in John Ousterhout’s Philosophy of Software Design
The Nature of Complexity in John Ousterhout’s Philosophy of Software DesignPhilip Schwarz The Nature of Complexity in the second chapter of John Ousterhout’s Philosophy of Software Design.
Drawing Heighway’s Dragon - Part 3 - Simplification Through Separation of Con...
Drawing Heighway’s Dragon - Part 3 - Simplification Through Separation of Con...Philip Schwarz Drawing Heighway’s Dragon - Part 3 - Simplification Through Separation of Concerns - Rotation Without Matrix Multiplication.
The Open-Closed Principle - Part 2 - The Contemporary Version - An Introduction
The Open-Closed Principle - Part 2 - The Contemporary Version - An IntroductionPhilip Schwarz The Open-Closed Principle - Part 2 - The Contemporary Version - An Introduction
The Open-Closed Principle - Part 1 - The Original Version
The Open-Closed Principle - Part 1 - The Original VersionPhilip Schwarz The Open-Closed Principle - Part 1 - The Original Version.
Drawing Heighway’s Dragon - Part II - Recursive Function Simplification - Fro...
Drawing Heighway’s Dragon - Part II - Recursive Function Simplification - Fro...Philip Schwarz Drawing Heighway’s Dragon - Part II - Recursive Function Simplification - From 2^n Recursive Invocations To n Tail-Recursive Invocations Exploiting Self-Similarity.
Drawing Heighway’s Dragon - Recursive Function Rewrite - From Imperative Styl...
Drawing Heighway’s Dragon - Recursive Function Rewrite - From Imperative Styl...Philip Schwarz Drawing Heighway’s Dragon - Recursive Function Rewrite - From Imperative Style in Pascal 64 To Functional Style in Scala 3
Fibonacci Function Gallery - Part 2 - One in a series
Fibonacci Function Gallery - Part 2 - One in a seriesPhilip Schwarz In this deck series we look at a number of different implementations of a function for computing the nth element of the Fibonacci sequence.
In part 2 we look at the following:
* Infinite Stream with Explicit Generation
* Infinite Stream with Implicit Definition
* Infinite Stream with Unfolding
* Infinite Stream with Iteration
* Infinite Stream with Scanning
Fibonacci Function Gallery - Part 1 (of a series) - with minor corrections
Fibonacci Function Gallery - Part 1 (of a series) - with minor correctionsPhilip Schwarz In this deck we are going to look at a number of different implementations of a function for computing the nth element of the Fibonacci sequence.
In part 1 we look at the following:
* Naïve Recursion
* Efficient Recursion with Tupling
* Tail Recursion with Accumulation
* Tail Recursion with Folding
* Stack-safe Recursion with Trampolining
Fibonacci Function Gallery - Part 1 (of a series)
Fibonacci Function Gallery - Part 1 (of a series)Philip Schwarz In this deck we are going to look at a number of different implementations of a function for computing the nth element of the Fibonacci sequence.
In part 1 we look at the following:
* Naïve Recursion
* Efficient Recursion with Tupling
* Tail Recursion with Accumulation
* Tail Recursion with Folding
* Stack-safe Recursion with Trampolining
Errata and scope for improvement (see later version of the deck for corrections):
* slide 6 - factorial should be fibonacci
* in some cases fib(0) = 0 and in others fib(0) = 1
The Debt Metaphor - Ward Cunningham in his 2009 YouTube video
The Debt Metaphor - Ward Cunningham in his 2009 YouTube videoPhilip Schwarz This deck begins with a transcript of the YouTube video in which Ward Cunningham
* defines the Debt Metaphor (a term he coined)
* addresses the confusion he has noticed in some people’s understanding of the term
The deck continues with a visual summary of the video. The aim of the summary is twofold:
* provide a quick and easy reminder of the metaphor’s original definition
* help combat the semantic diffusion of the metaphor
Folding Cheat Sheet Series Titles (so far)
Folding Cheat Sheet Series Titles (so far)Philip Schwarz The titles of the decks in the series (so far).
From Subtype Polymorphism To Typeclass-based Ad hoc Polymorphism - An Example
From Subtype Polymorphism To Typeclass-based Ad hoc Polymorphism - An ExamplePhilip Schwarz From Subtype Polymorphism To Typeclass-based Ad hoc Polymorphism - An Example
Function Applicative for Great Good of Leap Year Function
Function Applicative for Great Good of Leap Year FunctionPhilip Schwarz This deck is about the leap_year function shown in https://x.com/Iceland_jack/status/1802659835642528217, i.e.
leap_year :: Integral a => a -> Bool
leap_year = liftA2 (>) (gcd 80) (gcd 50)
Given an integer representing a year, the function returns a boolean indicating if that year is a leap year.
See why the Function Applicative allows the leap_year function to be defined as shown in that tweet.
Folding Cheat Sheet #6 - sixth in a series
Folding Cheat Sheet #6 - sixth in a seriesPhilip Schwarz Left and right folds and tail recursion.
Errata: there are some errors on slide 4. See here for a corrected versionsof the deck:
https://speakerdeck.com/philipschwarz/folding-cheat-sheet-number-6
https://fpilluminated.com/deck/227
Folding Cheat Sheet #5 - fifth in a series
Folding Cheat Sheet #5 - fifth in a seriesPhilip Schwarz Folding a list right and left using Cons and Nil results in the identity and reverse functions.
Hand Rolled Applicative User Validation Code Kata
Hand Rolled Applicative User Validation Code KataPhilip Schwarz Could you use a simple piece of Scala validation code (granted, a very simplistic one too!) that you can rewrite, now and again, to refresh your basic understanding of Applicative operators <*>, <*, *>?
The goal is not to write perfect code showcasing validation, but rather, to provide a small, rough-and ready exercise to reinforce your muscle-memory.
Despite its grandiose-sounding title, this deck consists of just three slides showing the Scala 3 code to be rewritten whenever the details of the operators begin to fade away.
The code is my rough and ready translation of a Haskell user-validation program found in a book called Finding Success (and Failure) in Haskell - Fall in love with applicative functors.
Ad
Recently uploaded (20)
Software Engineering Process, Notation & Tools Introduction - Part 4
Software Engineering Process, Notation & Tools Introduction - Part 4Gaurav Sharma Software Engineering Process, Notation & Tools Introduction
Software Engineering Process, Notation & Tools Introduction - Part 3
Software Engineering Process, Notation & Tools Introduction - Part 3Gaurav Sharma Software Engineering Process, Notation & Tools Introduction
Bonk coin airdrop_ Everything You Need to Know.pdf
Bonk coin airdrop_ Everything You Need to Know.pdfHerond Labs The Bonk airdrop, one of the largest in Solana’s history, distributed 50% of its total supply to community members, significantly boosting its popularity and Solana’s network activity. Below is everything you need to know about the Bonk coin airdrop, including its history, eligibility, how to claim tokens, risks, and current status.
https://blog.herond.org/bonk-coin-airdrop/
Maintaining + Optimizing Database Health: Vendors, Orchestrations, Enrichment...
Maintaining + Optimizing Database Health: Vendors, Orchestrations, Enrichment...BradBedford3 Join the Denver Marketo User Group, Captello and Integrate as we dive into the best practices, tools, and strategies for maintaining robust, high-performing databases. From managing vendors and automating orchestrations to enriching data for better insights, this session will unpack the key elements that keep your data ecosystem running smoothly—and smartly.
We will hear from Steve Armenti, Twelfth, and Aaron Karpaty, Captello, and Frannie Danzinger, Integrate.
iOS Developer Resume 2025 | Pramod Kumar
iOS Developer Resume 2025 | Pramod KumarPramod Kumar Explore the professional resume of Pramod Kumar, a skilled iOS developer with extensive experience in Swift, SwiftUI, and mobile app development. This portfolio highlights key projects, technical skills, and achievements in app design and development, showcasing expertise in creating intuitive, high-performance iOS applications. Ideal for recruiters and tech managers seeking a talented iOS engineer for their team.
The rise of e-commerce has redefined how retailers operate—and reconciliation...
The rise of e-commerce has redefined how retailers operate—and reconciliation...Prachi Desai As payment flows grow more fragmented, the complexity of reconciliation and revenue recognition increases. The result? Mounting operational costs, silent revenue leakages, and avoidable financial risk.
Spot the inefficiencies. Automate what’s slowing you down.
https://www.taxilla.com/ecommerce-reconciliation
Agentic Techniques in Retrieval-Augmented Generation with Azure AI Search
Agentic Techniques in Retrieval-Augmented Generation with Azure AI SearchMaxim Salnikov Discover how Agentic Retrieval in Azure AI Search takes Retrieval-Augmented Generation (RAG) to the next level by intelligently breaking down complex queries, leveraging full conversation history, and executing parallel searches through a new LLM-powered query planner. This session introduces a cutting-edge approach that delivers significantly more accurate, relevant, and grounded answers—unlocking new capabilities for building smarter, more responsive generative AI applications.
Traditional Retrieval-Augmented Generation (RAG) pipelines work well for simple queries—but when users ask complex, multi-part questions or refer to previous conversation history, they often fall short. That’s where Agentic Retrieval comes in: a game-changing advancement in Azure AI Search that brings LLM-powered reasoning directly into the retrieval layer.
This session unveils how agentic techniques elevate your RAG-based applications by introducing intelligent query planning, subquery decomposition, parallel execution, and result merging—all orchestrated by a new Knowledge Agent. You’ll learn how this approach significantly boosts relevance, groundedness, and answer quality, especially for sophisticated enterprise use cases.
Key takeaways:
- Understand the evolution from keyword and vector search to agentic query orchestration
- See how full conversation context improves retrieval accuracy
- Explore measurable improvements in answer relevance and completeness (up to 40% gains!)
- Get hands-on guidance on integrating Agentic Retrieval with Azure AI Foundry and SDKs
- Discover how to build scalable, AI-first applications powered by this new paradigm
Whether you're building intelligent copilots, enterprise Q&A bots, or AI-driven search solutions, this session will equip you with the tools and patterns to push beyond traditional RAG.
Providing Better Biodiversity Through Better Data
Providing Better Biodiversity Through Better DataSafe Software This session explores how FME is transforming data workflows at Ireland’s National Biodiversity Data Centre (NBDC) by eliminating manual data manipulation, incorporating machine learning, and enhancing overall efficiency. Attendees will gain insight into how NBDC is using FME to document and understand internal processes, make decision-making fully transparent, and shine a light on underlying code to improve clarity and reduce silent failures.
The presentation will also outline NBDC’s future plans for FME, including empowering staff to access and query data independently, without relying on external consultants. It will also showcase ambitions to connect to new data sources, unlock the full potential of its valuable datasets, create living atlases, and place its valuable data directly into the hands of decision-makers across Ireland—ensuring that biodiversity is not only protected but actively enhanced.
Online Queue Management System for Public Service Offices [Focused on Municip...
Online Queue Management System for Public Service Offices [Focused on Municip...Rishab Acharya This report documents the design and development of an Online Queue Management System tailored specifically for municipal offices in Nepal. Municipal offices, as critical providers of essential public services, face challenges including overcrowded queues, long waiting times, and inefficient service delivery, causing inconvenience to citizens and pressure on municipal staff. The proposed digital platform allows citizens to book queue tokens online for various physical services, facilitating efficient queue management and real-time wait time updates. Beyond queue management, the system includes modules to oversee non-physical developmental programs, such as educational and social welfare initiatives, enabling better participation and progress monitoring. Furthermore, it incorporates a module for monitoring infrastructure development projects, promoting transparency and allowing citizens to report issues and track progress. The system development follows established software engineering methodologies, including requirement analysis, UML-based system design, and iterative testing. Emphasis has been placed on user-friendliness, security, and scalability to meet the diverse needs of municipal offices across Nepal. Implementation of this integrated digital platform will enhance service efficiency, increase transparency, and improve citizen satisfaction, thereby supporting the modernization and digital transformation of public service delivery in Nepal.
Key AI Technologies Used by Indian Artificial Intelligence Companies
Key AI Technologies Used by Indian Artificial Intelligence CompaniesMypcot Infotech Indian tech firms are rapidly adopting advanced tools like machine learning, natural language processing, and computer vision to drive innovation. These key AI technologies enable smarter automation, data analysis, and decision-making. Leading developments are shaping the future of digital transformation among top artificial intelligence companies in India.
For more information please visit here https://www.mypcot.com/artificial-intelligence
Design by Contract - Building Robust Software with Contract-First Development
Design by Contract - Building Robust Software with Contract-First DevelopmentPar-Tec S.p.A. In the fast-paced world of software development, code quality and reliability are paramount. This SlideShare deck, presented at PyCon Italia 2025 by Antonio Spadaro, DevOps Engineer at Par-Tec, introduces the “Design by Contract” (DbC) philosophy and demonstrates how a Contract-First Development approach can elevate your projects.
Beginning with core DbC principles—preconditions, postconditions, and invariants—these slides define how formal “contracts” between classes and components lead to clearer, more maintainable code. You’ll explore:
The fundamental concepts of Design by Contract and why they matter.
How to write and enforce interface contracts to catch errors early.
Real-world examples showcasing how Contract-First Development improves error handling, documentation, and testability.
Practical Python demonstrations using libraries and tools that streamline DbC adoption in your workflow.
Top 5 Task Management Software to Boost Productivity in 2025
Top 5 Task Management Software to Boost Productivity in 2025Orangescrum In this blog, you’ll find a curated list of five powerful task management tools to watch in 2025. Each one is designed to help teams stay organized, improve collaboration, and consistently hit deadlines. We’ve included real-world use cases, key features, and data-driven insights to help you choose what fits your team best.
Best Inbound Call Tracking Software for Small Businesses
Best Inbound Call Tracking Software for Small BusinessesTheTelephony The best inbound call tracking software for small businesses offers features like call recording, real-time analytics, lead attribution, and CRM integration. It helps track marketing campaign performance, improve customer service, and manage leads efficiently. Look for solutions with user-friendly dashboards, customizable reporting, and scalable pricing plans tailored for small teams. Choosing the right tool can significantly enhance communication and boost overall business growth.
IBM Rational Unified Process For Software Engineering - Introduction
IBM Rational Unified Process For Software Engineering - IntroductionGaurav Sharma IBM Rational Unified Process For Software Engineering
Micro-Metrics Every Performance Engineer Should Validate Before Sign-Off
Micro-Metrics Every Performance Engineer Should Validate Before Sign-OffTier1 app When it comes to performance testing, most engineers instinctively gravitate toward the big-picture indicators—response time, memory usage, throughput. But what about the smaller, more subtle indicators that quietly shape your application’s performance and stability? we explored the hidden layer of performance diagnostics that too often gets overlooked: micro-metrics. These small but mighty data points can reveal early signs of trouble long before they manifest as outages or degradation in production.
From garbage collection behavior and object creation rates to thread state transitions and blocked thread patterns, we unpacked the critical micro-metrics every performance engineer should assess before giving the green light to any release.
This session went beyond the basics, offering hands-on demonstrations and JVM-level diagnostics that help identify performance blind spots traditional tests tend to miss. We showed how early detection of these subtle anomalies can drastically reduce post-deployment issues and production firefighting.
Whether you're a performance testing veteran or new to JVM tuning, this session helped shift your validation strategies left—empowering you to detect and resolve risks earlier in the lifecycle.
AI and Deep Learning with NVIDIA Technologies
AI and Deep Learning with NVIDIA TechnologiesSandeepKS52 Artificial intelligence and deep learning are transforming various fields by enabling machines to learn from data and make decisions. Understanding how to prepare data effectively is crucial, as it lays the foundation for training models that can recognize patterns and improve over time. Once models are trained, the focus shifts to deployment, where these intelligent systems are integrated into real-world applications, allowing them to perform tasks and provide insights based on new information. This exploration of AI encompasses the entire process from initial concepts to practical implementation, highlighting the importance of each stage in creating effective and reliable AI solutions.
FME for Climate Data: Turning Big Data into Actionable Insights
FME for Climate Data: Turning Big Data into Actionable InsightsSafe Software Regional and local governments aim to provide essential services for stormwater management systems. However, rapid urbanization and the increasing impacts of climate change are putting growing pressure on these governments to identify stormwater needs and develop effective plans. To address these challenges, GHD developed an FME solution to process over 20 years of rainfall data from rain gauges and USGS radar datasets. This solution extracts, organizes, and analyzes Next Generation Weather Radar (NEXRAD) big data, validates it with other data sources, and produces Intensity Duration Frequency (IDF) curves and future climate projections tailored to local needs. This presentation will showcase how FME can be leveraged to manage big data and prioritize infrastructure investments.
How Insurance Policy Administration Streamlines Policy Lifecycle for Agile Op...
How Insurance Policy Administration Streamlines Policy Lifecycle for Agile Op...Insurance Tech Services A modern Policy Administration System streamlines workflows and integrates with core systems to boost speed, accuracy, and customer satisfaction across the policy lifecycle. Visit https://www.damcogroup.com/insurance/policy-administration-systems for more details!
14 Years of Developing nCine - An Open Source 2D Game Framework
14 Years of Developing nCine - An Open Source 2D Game FrameworkAngelo Theodorou A 14-year journey developing nCine, an open-source 2D game framework.
This talk covers its origins, the challenges of staying motivated over the long term, and the hurdles of open-sourcing a personal project while working in the game industry.
Along the way, it’s packed with juicy technical pills to whet the appetite of the most curious developers.
How Insurance Policy Administration Streamlines Policy Lifecycle for Agile Op...
How Insurance Policy Administration Streamlines Policy Lifecycle for Agile Op...Insurance Tech Services
Ad