From Javascript To Haskell
13 likes2,157 views
This document discusses JavaScript and Haskell. It provides code examples comparing features of the two languages such as functions, recursion, lists, and higher-order functions. It also discusses Haskell concepts like lazy evaluation, monads, and type inference.
1 of 39
Downloaded 81 times
Ad
Recommended
dplyr
dplyrRomain Francois The document discusses the dplyr package for R. It provides examples of using dplyr verbs like filter, select, mutate, and summarise to subset and transform data frames. It also demonstrates grouping data with group_by and joining data with inner_join. The key features of dplyr are its simple verbs for filtering, modifying, arranging and summarizing data, its use of piping with %>%, and its convenience for working with tabular data.
Groovy
GroovyPascal Nsue Engonga This document discusses using Groovy on Android. It provides an overview of Groovy including its syntax features like closures, GStrings, maps/lists, and operators. It also discusses Groovy's advantages like simplifying testing and seamlessly integrating with Java. The document demonstrates various Groovy features and gives examples of working with I/O. It briefly mentions AST transformations in Groovy and the SwissKnife library for injecting views and handling threading. The document concludes with recommending some Groovy literature and thanking the audience.
Useful javascript
Useful javascriptLei Kang This document discusses various Ruby array and string methods like capitalize, each_char, map, sample, shuffle, zip, and more. Code snippets demonstrate how to use these methods on arrays and strings in Ruby. The document also discusses using Node.js and IRB to test Ruby code snippets and the potential to write tests for Ruby code using a BDD style.
Composition in JavaScript
Composition in JavaScriptJosh Mock The document discusses the concept of composition in programming. It provides examples of how to compose objects and functions to maximize code reuse. It promotes writing small, single-purpose functions that can be reused and combined through patterns like chaining and piping. This allows building complex programs from simple, composable parts that work together through universal interfaces like streams.
Thread介紹
Thread介紹Jack Chen The document compares pthread and fork for creating threads/processes. Pthread uses POSIX threads to create a new thread within the same process address space, where the new thread can access the same memory as the parent thread. Fork creates a new child process that is an exact copy of the parent process, but with its own unique process ID. The main differences are that pthreads share the same memory while processes have separate memory spaces, and pthreads are more lightweight to create than processes.
Tools.cpp
Tools.cppVorname Nachname This C++ code defines several functions used as tools: ProgressBar prints a progress bar to the console, IntToString converts an integer to a string, BernoulliDistr returns a random boolean value based on a probability, Distance calculates the distance between two points on a grid, NormalDistr generates a random number from a normal distribution, and LogNormal generates a random number from a log-normal distribution.
Git avançado
Git avançadoJean Carlo Machado This document discusses advanced Git topics including patches, commands that generate diffs, rewriting history, bisecting, rerere, moving code, and plumbling. It also explains how Git stores content in blobs by compressing a header, content, and SHA-1 hash into a file in the .git/objects directory based on the hash. Contact information is provided for questions.
Hacking the Internet of Things for Fun & Profit
Hacking the Internet of Things for Fun & ProfitRuben van Vreeland The combined world of IoT has reached a state where it's actuators spread from control systems in the industry into the city you live in and the privacy of your home. Now that everything is connected, we can abuse gadgets and devices for purposes they were not originally constructed for, and turn them against their users.
We will discuss current attacks, potentially 0-days, projects and Proof of Concepts that show the Internet of Shit that inhabits the Internet of Things, by OWASP's Top 10 attacks to these devices.
During this talk, we go into demonstrations that might inspire you to build a cool exploit, or radical security technology, during the conference.
Functional php
Functional phpJean Carlo Machado This document discusses functional programming concepts in PHP like pure functions, higher-order functions, and recursion. It provides examples of mapping, folding, and partial function application. Modularization with functional programming encourages decomposing problems into smaller parts and recomposing them with lazy evaluation and higher-order functions to reduce complexity.
completion_proc and history
completion_proc and historyNobuhiro IMAI This document discusses adding completion and editing features to the Readline library in Ruby. It demonstrates how to enable line editing, browsing command history, and tab completion. It also shows how to customize the completion suggestions and delete entries from the command history. The document provides code examples for setting a completion block and deleting entries from the history that match a given block. It encourages questions at the end.
はじめてのGroovy
はじめてのGroovyTsuyoshi Yamamoto T.Yamamoto gave a presentation on July 24, 2009 in Nagoya about using Grails for web development. He mentioned that around 90% of his work involves Grails and that he is a member of JGGUG, a Japanese user group for Groovy and Grails. In the presentation, he discussed using the Acegi Plugin with Grails.
Include
IncludeShi Chakep This C++ program allows a user to perform basic arithmetic operations. The user inputs two numbers and selects an operator: addition, subtraction, division, or multiplication. The program then calculates the result and displays it, identifying the operation and the two input numbers. If an invalid operator is selected, the user is prompted to try again.
Bubble Sort
Bubble SortEr. Ganesh Ram Suwal This document contains the code for a bubble sort algorithm written in C. It prompts the user to enter the number of elements in an array, accepts user input to populate the array, then performs multiple passes over the array to compare and swap adjacent elements into ascending order. It prints the contents of the array after each pass and when fully sorted.
Ruby 1.9
Ruby 1.9guestaef7ea The document summarizes the key changes and improvements in Ruby 1.9 compared to Ruby 1.8. Some of the major changes include faster performance and lower memory usage due to the new YARV virtual machine, new syntax features like lambda shorthand and implicit calling, changes to standard library methods like send no longer calling private methods, and encoding improvements to better support international characters.
Super Advanced Python –act1
Super Advanced Python –act1Ke Wei Louis The document discusses various built-in functions in Python including numeric, string, and container data types. It provides examples of using list comprehensions, dictionary comprehensions, lambda functions, enumerate, zip, filter, any, all, map and reduce to manipulate data in Python. It also includes references to online resources for further reading.
Exploring slides
Exploring slidesakaptur The document discusses strategies for understanding the CPython implementation of Python without reading the code. It recommends using observation and experimentation techniques like inspecting code behavior, examining commit histories, understanding internal structures through disassembly, running performance tests, and writing tests. Tools mentioned include inspect, timeit, and custom inspection modules. The key message is that these hands-on techniques allow one to critically examine and experiment with the code in ways that provide deeper understanding than just reading it.
Groovy ネタ NGK 忘年会2009 ライトニングトーク
Groovy ネタ NGK 忘年会2009 ライトニングトークTsuyoshi Yamamoto The document shows an example Java class called HelloWorld that contains a greeting method to return the string "Hello" plus a name. It then demonstrates initializing an instance of the class, setting the name, and calling the greet method to print the greeting. The document also shows how this example is translated to use Groovy instead of Java.
Cycle.js: Functional and Reactive
Cycle.js: Functional and ReactiveEugene Zharkov Cycle.js is a functional and reactive JavaScript framework for building user interfaces based on Observables and declarative code. It uses RxJS Observables to model asynchronous behavior and data flow in applications. This allows the unidirectional data flow of views updating models via intents to be modeled as Observables. The document includes code examples of using Cycle.js with RxJS to build reactive UIs, including handling events, updating state, and generating HTML. It also summarizes how the Cycle.run function coordinates driving the application by connecting sources to sinks.
Program(Output)
Program(Output)princy75 The document contains 15 code snippets of C/C++ programs. Program 1 prints a string in increasing substrings. Program 2 returns the maximum of two integers passed by reference and modifies them. Program 3 demonstrates pointer operations on strings. The remaining programs cover topics like functions, structures, classes, recursion and other C/C++ features.
Libtcc and gwan
Libtcc and gwanDaeMyung Kang The document discusses libtcc, a Tiny C Compiler library, and GWAN, a web application server.
Libtcc allows C scripting support and dynamic code generation. It can compile and run C code from strings at runtime. GWAN is a web app server that supports scripting in C, Java, and Object C. It can be downloaded, installed, and run with ./gwan on Linux systems. GWAN handlers are located in a csp folder.
Basicsof c make and git for a hello qt application
Basicsof c make and git for a hello qt applicationDinesh Manajipet This document provides an overview of using CMake and Git for a Hello World application in C, Qt, and managing source code with Git. It demonstrates how to configure CMake files to compile Hello World programs in C and Qt. It also summarizes basic Git commands like init, add, commit, branch, merge, and rebase. Useful online resources for learning more about CMake, Qt, and Git are provided.
Taking Inspiration From The Functional World
Taking Inspiration From The Functional WorldPiotr Solnica No matter how crazy this may sound, taking inspiration from the functional world when programming in an OO language like Ruby turns out to be a good idea. In this talk we’re going to look at various functional ideas implemented in Ruby and see how they can improve and simplify our code, making it easier to grow and maintain applications.
Mysql 4.0 casual
Mysql 4.0 casualMasahiro Nagano The document discusses MySQL configuration, table creation, and queries. It shows the innodb_buffer_pool_size being set to 10G in my.cnf but only showing as 2GB in MySQL variables. It creates a table with an index and explains queries using that index. The last part shows using GET_LOCK() and RELEASE_LOCK() calls.
多治見IT勉強会 Groovy Grails
多治見IT勉強会 Groovy GrailsTsuyoshi Yamamoto The document discusses sample code for creating a Chat class with message, dateCreated, and lastUpdated properties in Groovy. It also defines a ChatController that uses scaffolding to automatically generate CRUD operations for the Chat class.
Android Guava
Android Guava丞廷 鄭 This document provides an overview of features in the Guava library for Java, including:
- Using Optional to avoid null values and NullPointerExceptions.
- Using Preconditions to validate arguments and throw exceptions.
- Using Throwables to handle exceptions in a cleaner way.
- Functional idioms for working with collections and functions.
- Multisets and multimaps for representing collections that allow duplicates.
- Ranges for representing ranges of values like integers or characters.
- Hashing utilities for generating hashes like MD5.
Introduzione a C#
Introduzione a C#Lorenz Cuno Klopfenstein This document contains code snippets demonstrating various C# language features including:
1. Defining classes with methods and properties.
2. Creating and initializing objects.
3. Implementing interfaces and inheritance.
4. Using generics, delegates, events, and attributes.
5. Working with collections, LINQ queries, and core namespaces.
3分くらいで分かるassert()
3分くらいで分かるassert()Ippei Ogiwara The document discusses PHP assertions and includes code examples. It shows how to use assertions to validate arguments passed to a function, and demonstrates asserting a random number is within expected minimum and maximum bounds. It also discusses PHP assertion configuration options and shows the PHP source code for the assert function.
"Немного о функциональном программирование в JavaScript" Алексей Коваленко
"Немного о функциональном программирование в JavaScript" Алексей КоваленкоFwdays This document discusses functional programming concepts in JavaScript including imperative vs declarative programming, currying, composition, functors, and the Ramda library. It provides examples of implementing curried functions, function composition, and functors in JavaScript. Functors are discussed in the context of arrays and the Maybe datatype. The Ramda library is presented as an alternative to Underscore/Lodash that follows a more functional programming style with its use of currying and function composition.
Groovy
GroovyZen Urban Groovy is a dynamic language for the Java Virtual Machine that aims to provide a concise, readable syntax with features like closures, metaprogramming and domain-specific language support. Some key features include dynamic typing, operator overloading, builders for generating XML/Swing code and the ability to extend any class or category of objects with additional methods. Groovy aims to be fully interoperable with Java while allowing more compact representations of common patterns.
Javascript
JavascriptVlad Ifrim This document provides a summary of new features in JavaScript, including let/const block scoping, arrow functions, template strings, classes, generators, async/await, and more. It explains each feature in 1-3 sentences and includes code examples.
More Related Content
What's hot (19)
Functional php
Functional phpJean Carlo Machado This document discusses functional programming concepts in PHP like pure functions, higher-order functions, and recursion. It provides examples of mapping, folding, and partial function application. Modularization with functional programming encourages decomposing problems into smaller parts and recomposing them with lazy evaluation and higher-order functions to reduce complexity.
completion_proc and history
completion_proc and historyNobuhiro IMAI This document discusses adding completion and editing features to the Readline library in Ruby. It demonstrates how to enable line editing, browsing command history, and tab completion. It also shows how to customize the completion suggestions and delete entries from the command history. The document provides code examples for setting a completion block and deleting entries from the history that match a given block. It encourages questions at the end.
はじめてのGroovy
はじめてのGroovyTsuyoshi Yamamoto T.Yamamoto gave a presentation on July 24, 2009 in Nagoya about using Grails for web development. He mentioned that around 90% of his work involves Grails and that he is a member of JGGUG, a Japanese user group for Groovy and Grails. In the presentation, he discussed using the Acegi Plugin with Grails.
Include
IncludeShi Chakep This C++ program allows a user to perform basic arithmetic operations. The user inputs two numbers and selects an operator: addition, subtraction, division, or multiplication. The program then calculates the result and displays it, identifying the operation and the two input numbers. If an invalid operator is selected, the user is prompted to try again.
Bubble Sort
Bubble SortEr. Ganesh Ram Suwal This document contains the code for a bubble sort algorithm written in C. It prompts the user to enter the number of elements in an array, accepts user input to populate the array, then performs multiple passes over the array to compare and swap adjacent elements into ascending order. It prints the contents of the array after each pass and when fully sorted.
Ruby 1.9
Ruby 1.9guestaef7ea The document summarizes the key changes and improvements in Ruby 1.9 compared to Ruby 1.8. Some of the major changes include faster performance and lower memory usage due to the new YARV virtual machine, new syntax features like lambda shorthand and implicit calling, changes to standard library methods like send no longer calling private methods, and encoding improvements to better support international characters.
Super Advanced Python –act1
Super Advanced Python –act1Ke Wei Louis The document discusses various built-in functions in Python including numeric, string, and container data types. It provides examples of using list comprehensions, dictionary comprehensions, lambda functions, enumerate, zip, filter, any, all, map and reduce to manipulate data in Python. It also includes references to online resources for further reading.
Exploring slides
Exploring slidesakaptur The document discusses strategies for understanding the CPython implementation of Python without reading the code. It recommends using observation and experimentation techniques like inspecting code behavior, examining commit histories, understanding internal structures through disassembly, running performance tests, and writing tests. Tools mentioned include inspect, timeit, and custom inspection modules. The key message is that these hands-on techniques allow one to critically examine and experiment with the code in ways that provide deeper understanding than just reading it.
Groovy ネタ NGK 忘年会2009 ライトニングトーク
Groovy ネタ NGK 忘年会2009 ライトニングトークTsuyoshi Yamamoto The document shows an example Java class called HelloWorld that contains a greeting method to return the string "Hello" plus a name. It then demonstrates initializing an instance of the class, setting the name, and calling the greet method to print the greeting. The document also shows how this example is translated to use Groovy instead of Java.
Cycle.js: Functional and Reactive
Cycle.js: Functional and ReactiveEugene Zharkov Cycle.js is a functional and reactive JavaScript framework for building user interfaces based on Observables and declarative code. It uses RxJS Observables to model asynchronous behavior and data flow in applications. This allows the unidirectional data flow of views updating models via intents to be modeled as Observables. The document includes code examples of using Cycle.js with RxJS to build reactive UIs, including handling events, updating state, and generating HTML. It also summarizes how the Cycle.run function coordinates driving the application by connecting sources to sinks.
Program(Output)
Program(Output)princy75 The document contains 15 code snippets of C/C++ programs. Program 1 prints a string in increasing substrings. Program 2 returns the maximum of two integers passed by reference and modifies them. Program 3 demonstrates pointer operations on strings. The remaining programs cover topics like functions, structures, classes, recursion and other C/C++ features.
Libtcc and gwan
Libtcc and gwanDaeMyung Kang The document discusses libtcc, a Tiny C Compiler library, and GWAN, a web application server.
Libtcc allows C scripting support and dynamic code generation. It can compile and run C code from strings at runtime. GWAN is a web app server that supports scripting in C, Java, and Object C. It can be downloaded, installed, and run with ./gwan on Linux systems. GWAN handlers are located in a csp folder.
Basicsof c make and git for a hello qt application
Basicsof c make and git for a hello qt applicationDinesh Manajipet This document provides an overview of using CMake and Git for a Hello World application in C, Qt, and managing source code with Git. It demonstrates how to configure CMake files to compile Hello World programs in C and Qt. It also summarizes basic Git commands like init, add, commit, branch, merge, and rebase. Useful online resources for learning more about CMake, Qt, and Git are provided.
Taking Inspiration From The Functional World
Taking Inspiration From The Functional WorldPiotr Solnica No matter how crazy this may sound, taking inspiration from the functional world when programming in an OO language like Ruby turns out to be a good idea. In this talk we’re going to look at various functional ideas implemented in Ruby and see how they can improve and simplify our code, making it easier to grow and maintain applications.
Mysql 4.0 casual
Mysql 4.0 casualMasahiro Nagano The document discusses MySQL configuration, table creation, and queries. It shows the innodb_buffer_pool_size being set to 10G in my.cnf but only showing as 2GB in MySQL variables. It creates a table with an index and explains queries using that index. The last part shows using GET_LOCK() and RELEASE_LOCK() calls.
多治見IT勉強会 Groovy Grails
多治見IT勉強会 Groovy GrailsTsuyoshi Yamamoto The document discusses sample code for creating a Chat class with message, dateCreated, and lastUpdated properties in Groovy. It also defines a ChatController that uses scaffolding to automatically generate CRUD operations for the Chat class.
Android Guava
Android Guava丞廷 鄭 This document provides an overview of features in the Guava library for Java, including:
- Using Optional to avoid null values and NullPointerExceptions.
- Using Preconditions to validate arguments and throw exceptions.
- Using Throwables to handle exceptions in a cleaner way.
- Functional idioms for working with collections and functions.
- Multisets and multimaps for representing collections that allow duplicates.
- Ranges for representing ranges of values like integers or characters.
- Hashing utilities for generating hashes like MD5.
Introduzione a C#
Introduzione a C#Lorenz Cuno Klopfenstein This document contains code snippets demonstrating various C# language features including:
1. Defining classes with methods and properties.
2. Creating and initializing objects.
3. Implementing interfaces and inheritance.
4. Using generics, delegates, events, and attributes.
5. Working with collections, LINQ queries, and core namespaces.
3分くらいで分かるassert()
3分くらいで分かるassert()Ippei Ogiwara The document discusses PHP assertions and includes code examples. It shows how to use assertions to validate arguments passed to a function, and demonstrates asserting a random number is within expected minimum and maximum bounds. It also discusses PHP assertion configuration options and shows the PHP source code for the assert function.
Similar to From Javascript To Haskell (20)
"Немного о функциональном программирование в JavaScript" Алексей Коваленко
"Немного о функциональном программирование в JavaScript" Алексей КоваленкоFwdays This document discusses functional programming concepts in JavaScript including imperative vs declarative programming, currying, composition, functors, and the Ramda library. It provides examples of implementing curried functions, function composition, and functors in JavaScript. Functors are discussed in the context of arrays and the Maybe datatype. The Ramda library is presented as an alternative to Underscore/Lodash that follows a more functional programming style with its use of currying and function composition.
Groovy
GroovyZen Urban Groovy is a dynamic language for the Java Virtual Machine that aims to provide a concise, readable syntax with features like closures, metaprogramming and domain-specific language support. Some key features include dynamic typing, operator overloading, builders for generating XML/Swing code and the ability to extend any class or category of objects with additional methods. Groovy aims to be fully interoperable with Java while allowing more compact representations of common patterns.
Javascript
JavascriptVlad Ifrim This document provides a summary of new features in JavaScript, including let/const block scoping, arrow functions, template strings, classes, generators, async/await, and more. It explains each feature in 1-3 sentences and includes code examples.
Eta
EtaJarek Ratajski This document summarizes Eta, a compiler that allows writing Haskell code to run on the Java Virtual Machine. Eta works by compiling Haskell to the STG intermediate representation and then generating JVM bytecode from STG. This allows Haskell code using GHC language extensions to run on the JVM without modifications. Performance is improved through optimizations like TCO. Eta supports packages from the Haskell Hackage repository by patching native C calls to equivalent JVM calls. This allows most Haskell libraries to work on Eta.
Functional Programming for OO Programmers (part 2)
Functional Programming for OO Programmers (part 2)Calvin Cheng Code examples demonstrating Functional Programming concepts, with JavaScript and Haskell.
Part 1 can be found here - http://www.slideshare.net/calvinchengx/functional-programming-part01
Source code can be found here - http://github.com/calvinchengx/learnhaskell
Let me know if you spot any errors! Thank you! :-)
Refactoring to Macros with Clojure
Refactoring to Macros with ClojureDmitry Buzdin This document discusses refactoring Java code to Clojure using macros. It provides examples of refactoring Java code that uses method chaining to equivalent Clojure code using the threading macros (->> and -<>). It also discusses other Clojure features like type hints, the doto macro, and polyglot projects using Leiningen.
Academy PRO: ES2015
Academy PRO: ES2015Binary Studio Lecture for Binary Studio Academy PRO course about ReactJS by Nikita Semenistiy (TechLead & JS developer at Binary Studio)
Beauty and the beast - Haskell on JVM
Beauty and the beast - Haskell on JVMJarek Ratajski This document discusses Eta, a compiler that allows writing Haskell code and running it on the Java Virtual Machine (JVM). Eta works by compiling Haskell to the STG intermediate language like GHC, and then compiling STG to JVM bytecode. This allows Haskell code to interoperate with Java code via foreign function interfaces. Performance benchmarks show Eta achieves performance comparable to equivalent Java code for algorithms like quicksort. Eta supports many Haskell language extensions and libraries from Hackage. This enables Haskell code to run on the JVM while maintaining high-level functional programming abilities.
Vcs16
Vcs16Malikireddy Bramhananda Reddy The document discusses various concepts related to arrays in C programming language including initializing arrays, accessing array elements using subscripts, storage of arrays in memory, bounds checking for arrays, and different sorting algorithms like selection sort, bubble sort, and quick sort that can be applied to arrays. It provides code examples and explanations for initializing, accessing, and sorting integer arrays.
Functional perl
Functional perlErrorific This document discusses functional programming concepts in Perl. It begins with a brief history of Perl and how functions like sort, grep, and map evolved over time and took on a more functional style. It then demonstrates how to write functional-style code in Perl using lexical scoping, first-class functions, and function composition. Examples include writing dice rolling and dice tower generation functions in a functional way. The document notes some limitations of functional programming in Perl, like lack of purity and difficulty making some concepts simple that are in functional languages, but suggests improvements coming in Perl 6 like static typing and better support for functional patterns.
FunctionalJS - George Shevtsov
FunctionalJS - George ShevtsovGeorgiy Shevtsov This is a presentation which was presented on Innovecs Tech Hangout in Kiev June 2017.
Includes
- Pure Functions
- Currying
- Function Composition
- Functors
- Monads
1. George Shevtsov - Functional JavaScript
1. George Shevtsov - Functional JavaScriptInnovecs The document discusses functional JavaScript concepts like pure functions, side effects, immutability, function composition, and monads. It provides examples of using Maybe monads to safely access nested object properties and define functor and monad interfaces for the Maybe type to allow chaining operations.
Functional programming in ruby
Functional programming in rubyKoen Handekyn This document provides an overview of functional programming concepts in Ruby. It discusses the history and advantages of functional programming, comparing the functional and object-oriented paradigms. It introduces functional programming concepts like pure functions, recursion, immutable data, and higher-order functions. It demonstrates how these concepts can be applied in Ruby using functions, closures, currying, composition, and the Enumerable module. Overall, the document serves as a high-level introduction to thinking functionally in Ruby.
Damn Fine CoffeeScript
Damn Fine CoffeeScriptniklal The document discusses CoffeeScript, a programming language that compiles to JavaScript. It provides examples of CoffeeScript syntax for functions, conditionals, loops, classes, and other constructs. It explains how CoffeeScript aims to have less syntactic noise than JavaScript while remaining true to the underlying JavaScript semantics through compilation.
Intro to Functional Programming Workshop (code4lib)
Intro to Functional Programming Workshop (code4lib)Will Kurt This document provides an introduction to functional programming concepts like recursion, higher-order functions, and currying using JavaScript and Haskell examples. It begins with an overview of functional programming and then presents exercises involving lists, recursion, and functions like map, filter, and fold that build up skills with these concepts over multiple sections.
Developing High Performance Websites and Modern Apps with JavaScript and HTML5
Developing High Performance Websites and Modern Apps with JavaScript and HTML5Doris Chen Creating high performance sites and apps is crucial for every developer. In this session, we will explore the best practices and performance tricks, including startup time, UI responsiveness, and Memory efficiency to make your apps running faster and fluid. Come learn the tips, tricks, and tools for maximizing the performance of your sites and apps with JavaScript and HTML5.
Pragmatic Real-World Scala (short version)
Pragmatic Real-World Scala (short version)Jonas Bonér Short (45 min) version of my 'Pragmatic Real-World Scala' talk. Discussing patterns and idioms discovered during 1.5 years of building a production system for finance; portfolio management and simulation.
Pragmatic Real-World Scala
Pragmatic Real-World Scalaparag978978 This document summarizes a presentation on Scala given by Jonas Boner. It shows how to build a simple chat application in 30 lines of code using Lift framework. It then discusses Scala as a scalable, pragmatic language that blends object-oriented and functional programming. Traits allow for rich and extensible abstractions. Pattern matching, immutable data structures, and functions as first-class values enable a functional style. Tools like SBT and frameworks like Lift make Scala productive for real-world use.
Rainer Grimm, “Functional Programming in C++11”
Rainer Grimm, “Functional Programming in C++11”Platonov Sergey C++ это мультипарадигменный язык, поэтому программист сам может выбирать и совмещать структурный, объектно-ориентированный, обобщенный и функциональный подходы. Функциональный аспект C++ особенно расширился стандартом C++11: лямбда-функции, variadic templates, std::function, std::bind. (язык доклада: английский).
Functional Programming with Groovy
Functional Programming with GroovyArturo Herrero My talk about Functional Programming with Groovy at Greach
Greach http://greach.es/
the Groovy spanish conf
Date:
04-11-2011
Ad
More from ujihisa (20)
vimconf2013
vimconf2013ujihisa Tatsuhiro Ujihisa is a software engineer based in Vancouver, BC, Canada who has worked in Osaka, Japan and Vancouver. He is involved with several meetup groups in Vancouver focused on Ruby, Clojure, and other technologies. Ujihisa currently works at HootSuite Media on their social media management platform using technologies like Scala, and prefers standing desks.
KOF2013 Minecraft / Clojure
KOF2013 Minecraft / Clojureujihisa Tatsuhiro Ujihisa is a software engineer based in Vancouver, BC, Canada who has worked in Osaka, Japan and Vancouver. He is involved with several meetup groups in Vancouver focused on Ruby, Clojure, and other technologies. Ujihisa currently works at HootSuite Media Inc. where he works on their social media management platform using technologies like Scala. At work, he prefers using a standup desk.
Keynote ujihisa.vim#2
Keynote ujihisa.vim#2ujihisa The document outlines 11 levels for becoming a good programmer with Vim. It begins with learning basic Vim commands through vimtutor (Level 1). Level 2 focuses on using motions and text objects without visual mode. Later levels involve customizing one's Vim configuration, using plugins, writing Vim scripts, and developing tools in Vim. The presenter notes they recently got married and their wife will be arriving soon.
vimshell made other shells legacy
vimshell made other shells legacyujihisa The document discusses vimshell, a shell plugin for Vim. Vimshell allows users to run a shell directly within Vim and provides integration with other Vim plugins. It is written entirely in Vimscript, runs on any platform Vim supports, and its scripting language is also Vimscript. The document covers pros and cons of vimshell, built-in commands, plugins, and tips for use.
From Ruby to Haskell (Kansai Yami RubyKaigi)
From Ruby to Haskell (Kansai Yami RubyKaigi)ujihisa This document summarizes a presentation on Haskell given in Japanese. The agenda includes introductions to Haskell for beginners, average people, and professionals. The document compares FizzBuzz implementations in Ruby and Haskell and demonstrates Haskell concepts like strong static typing, lazy evaluation, functions, operators, and side effects. It also includes a brief self-introduction from the presenter.
Text Manipulation with/without Parsec
Text Manipulation with/without Parsecujihisa This document summarizes a presentation on text manipulation in Haskell using the parsec and attoparsec libraries. It discusses splitting strings, designing a split function recursively and with parsec, and comparing the parsec and attoparsec parsing libraries. It also covers the different text types in Haskell - String, ByteString, and Text - and when each would be used.
CoffeeScript in hootsuite
CoffeeScript in hootsuiteujihisa This document provides instructions for using CoffeeScript, a programming language that compiles to JavaScript. It can be installed using npm or brew and commands like "coffee" allow files to be compiled and run. CoffeeScript uses a different syntax than JavaScript but has the same semantics and functionality without adding new functions.
HootSuite Dev 2
HootSuite Dev 2ujihisa This document summarizes Tatsuhiro Ujihisa's work as a software engineer at HootSuite since June 2010. It discusses the teams he works with, including web, mobile, design, and test. It also outlines some of the technologies used at HootSuite like PHP, MySQL, and Memcached. Ujihisa focuses on PHP and JavaScript development and uses various tools like Vim, PHPUnit, and Selenium in his work.
Ruby Kansai49
Ruby Kansai49ujihisa This document contains information from a presentation given by Tatsuhiro Ujihisa on March 12, 2011 in Vancouver, Canada. It provides details about Ujihisa, including that he is a HootSuite developer who works with Ruby, Vim, and Haskell. It also outlines some of Ujihisa's Vim plugins, including Unite, which is a framework for selections and actions; and vital, which provides embedded function sets similar to jQuery and is used for Vim plugins.
Hootsuite dev 2011
Hootsuite dev 2011ujihisa The document discusses Tatsuhiro Ujihisa's work as a developer at HootSuite Media. It provides details about his daily activities and responsibilities, HootSuite's products and services, the company organization, and projects he has worked on including the HootSuite for iPad app and a translation project. It also shares background about Ujihisa moving from Japan to Vancouver and his previous work on a Twitter client called Termtter before joining HootSuite.
LLVM Workshop Osaka Umeda, Japan
LLVM Workshop Osaka Umeda, Japanujihisa The Low Level Virtual Machine (LLVM) is an open source compiler infrastructure that provides modular and reusable compiler and toolchain technologies. LLVM can compile C/C++ code and generate optimized machine code for multiple platforms. It works as an intermediate representation between source code and machine code by first compiling source code to LLVM's own intermediate language, then performing optimizations on that code before generating target machine code.
Hacking parse.y (RubyConf 2009)
Hacking parse.y (RubyConf 2009)ujihisa The document summarizes hacking the Ruby parser (parse.y) to add new syntax features to the language. It discusses four cases: 1) allowing the :-) syntax for hash rockets, 2) treating single quotes as symbols, 3) adding increment operator ++, and 4) allowing method definitions like def A#b. The presenter explains how changes can be made to the lexer and parser to implement these features by modifying parse.y and related files.
Hacking parse.y (RubyKansai38)
Hacking parse.y (RubyKansai38)ujihisa The document discusses hacking the Ruby parser parse.y to add new syntax features to the Ruby language. It covers several cases:
1. Adding :-) as an alias for => in hash literals.
2. Treating single quotes as symbol literals under certain conditions.
3. Adding ++ as an incremental operator.
4. Parsing the A#b syntax for defining instance methods.
The document analyzes how parse.y and the lexer deal with colons, quotes, comments and other syntax elements, and shows the changes needed to parse the new syntax features. It also discusses Ruby internals like the parser generator bison, and MRI implementation details like the parse.y file size.
Hacking Parse.y with ujihisa
Hacking Parse.y with ujihisaujihisa The document discusses various ways to extend and modify the Ruby parser. It covers:
1. Proposed syntax additions like {:key :-) "value"} and ++i which would require changes to the lexer and parser.
2. How the parser handles colons and symbols using token types like tCOLON2.
3. Examples of parsing constructs like method calls, assignments, and the def A#b syntax.
4. Details of how the lexer and parser are implemented in C using a parser generator and interaction between lexer states and token types.
Ruby Kansai #35 About RubyKaigi2009 ujihisa
Ruby Kansai #35 About RubyKaigi2009 ujihisaujihisa - Yehuda Katz gave a talk titled "From Rails to Rack: Making Rails 3 a Better Ruby Citizen" where he discussed how Rails 3 has moved away from being a full-stack framework by extracting common components like Rack into separate gems making Rails a better Ruby citizen.
- Aaron Patterson discussed how the Nokogiri library can be used to parse HTML and XML documents in a fast and flexible manner.
- ujihisa gave a talk titled "Vim for Rubyists" where he discussed how Vim can be a powerful tool for Ruby development by taking advantage of features like syntax highlighting, code completion, and running tests directly from within Vim.
Kof2008 Itll
Kof2008 Itllujihisa This document introduces lazy lists, which are data structures that only calculate the needed parts of a list, unlike regular lists that calculate the entire list up front. It notes that Haskell supports lazy lists by default while Ruby can also support them. It describes different types of lazy lists, such as those with boundless, undefined, or defined lengths. It also discusses how to construct lazy lists and common operations like truncation, filtering, mapping, and folding.
All About Metarw -- VimM#2
All About Metarw -- VimM#2ujihisa Metarw is a Vim plugin created by Tatsuhiro Ujihisa in 2008 that allows editing and writing to files not only on the local filesystem but also on remote systems. It provides key mappings for writing buffers to files with :w and quitting Vim with :q similar to normal filesystem usage. The plugin also supports editing files directly from URLs.
Itc2008 Ujihisa
Itc2008 Ujihisaujihisa The document discusses a teacher and students working in the IT industry. It introduces a person named ujihisa who works with technologies like Ruby, Vim, and Haskell. Details are provided about ujihisa's background, interests in programming languages and text editors, and involvement in open source projects. The document explores using Vimscript for customizing Vim and potential applications of Vimscript beyond Vim.
Agile Web Posting With Ruby / Ruby Kaigi2008
Agile Web Posting With Ruby / Ruby Kaigi2008ujihisa This document discusses using Ruby for agile web development. It focuses on using Ruby for tasks like optimizing output when posting to web services, using bookmarklets and add-ons to automate tasks, and scraping or aggregating data from RSS feeds using tools like Yahoo Pipes. It also provides examples of using the Ruby libraries Mechanize and Net::HTTP to automate posting and interactions with websites. Ruby can be integrated with tools like Vim via Vimscript to further automate workflows. Haskell is also mentioned as a language some Rubyists use and tools for embedding Haskell in Ruby are presented.
Ad
Recently uploaded (20)
CryptoSuper 500 - Thirteenth Report: Bitcoin is a Global Decentralized Superc...
CryptoSuper 500 - Thirteenth Report: Bitcoin is a Global Decentralized Superc...LauraHunter3 The CryptoSuper 500 report from November 2024 highlights the significant evolution and consolidation of cryptocurrency markets over the past six years, noting that only Bitcoin and Dogecoin remain dominant in the proof-of-work mining space, generating over $13 billion annually. Bitcoin, notably, now has a market capitalization of $1.8 trillion and operates with a network power exceeding 700 exahashes per second. Its mining industry, increasingly dominated by publicly traded North American companies, has become significantly greener, with approximately 60% of energy sourced from sustainable methods. Despite the challenges of the recent reward halving, Bitcoin continues to follow strong, predictable growth patterns, supported by technological advancements and expanding usage of renewable energy.
The S.T.A.R. Strategy: A Strategic Finance Framework for Healthcare, Infrastr...
The S.T.A.R. Strategy: A Strategic Finance Framework for Healthcare, Infrastr...Temilola Onalaja The S.T.A.R. Strategy is a cross-sector financial framework designed to align operational workflows with strategic financial planning in complex environments. Developed by Temilola Aderonke Onalaja, it has been adopted in healthcare systems, infrastructure projects, and executive trainings across Nigeria, Ghana, South Africa, and the UK—delivering measurable improvements in cost control, forecasting, and institutional risk management.
#Strategic planning in Africa,#Operational efficiency #Risk mitigation framework
#Healthcare finance #CFO tools #Public-private finance #Financial transformation
#Revenue cycle improvement #Infrastructure budgeting #Temilola Onalaja S.T.A.R. Strategy
Kanak Capital Markets is a globally regulated online trading platform offerin...
Kanak Capital Markets is a globally regulated online trading platform offerin...Kanak Capital Markets Kanak Capital Markets was awarded Best Online Trading Platform for Multi-Asset Brokerage at the Forex Traders Summit 2025.
Visit Us at: https://kanakmarkets.com/
GRAVOY TECH NETWORK :TRUSTED EXPERTS TO HELP RECOVERY STOLEN FUNDS
GRAVOY TECH NETWORK :TRUSTED EXPERTS TO HELP RECOVERY STOLEN FUNDSjohn1robert298 As a parent in Chicago, I never imagined that my desire to secure my children's educational future would lead me into a financial nightmare. I was drawn to a 529 Plan that I saw advertised on Facebook, promising returns in Bitcoin. The idea of investing in a cutting-edge asset like cryptocurrency seemed like a smart move, especially with the potential for high returns. I thought I was making a wise decision for my family's future.The former insurance agent who pitched the plan presented himself as a financial expert, complete with impressive credentials and a polished presentation. He assured us that our investments would be safe and that we could expect substantial returns. With dreams of funding my children's college education, I invested $20,000 in USDT, convinced that I was making a sound financial choice. I began to notice red flags. Communication from the agent became sporadic, and the promised returns were slow to materialize. I started to feel uneasy, but I held onto hope, believing that the volatility of Bitcoin was simply causing delays. It wasn't until I heard about GRAVOY TECH NETWORK investigation that the truth began to unravel. Their team, dedicated to tracing and recovering assets lost to scams, played a crucial role in exposing the Ponzi scheme that had ensnared so many of us.The shocking revelation that this was a Ponzi scheme left me and many other parents devastated. GRAVOY TECH NETWORK findings revealed that the agent had used the funds from new investors to pay off earlier ones, creating a façade of success while he pocketed our hard-earned money. I felt a mix of anger, betrayal, and fear for my family's financial future. The dreams I had for my children's education now seemed out of reach.Adding to my heartbreak, I recently lost my husband, which made this situation even more challenging. He was my partner in planning for our children's future, and now I was left to navigate this financial turmoil alone. As the SEC stepped in and filed charges against the agent, I found myself grappling with the aftermath. Many of us parents were seeking legal recourse, and GRAVOY TECH NETWORK became a guiding light in this dark time. Their expertise helped us understand our options and navigate the complex process of trying to recover our lost investments. Thanks to GRAVOY TECH NETWORK diligent efforts, I was able to recover everything I had lost. The emotional toll of this experience has been immense, but knowing that I can now provide for my children's future has brought me a sense of relief.This has opened my eyes to the risks associated with investing in unregulated financial products, especially in the volatile world of cryptocurrency. I urge other parents to be cautious and conduct thorough research before making any investment decisions. with the support of GRAVOY TECH NETWORK serves as a stark reminder that even the most promising opportunities can hide dark realities, and we must protect ourselves and our families .GRAVOY TECH NET
Rs 50 Entry to Shivsrushti Makes History Inclusive, Thanks to Abhay Bhutada’s...
Rs 50 Entry to Shivsrushti Makes History Inclusive, Thanks to Abhay Bhutada’s...Harsh Mishra Shivsrushti in Pune is now open to all for just Rs 50, made possible by the Abhay Bhutada Foundation’s generous donation. This presentation explores how history meets accessibility, giving families and students a chance to engage with Chhatrapati Shivaji Maharaj’s legacy through immersive storytelling and cultural education.
Paper: World Game (s) Great Redesign.pdf
Paper: World Game (s) Great Redesign.pdfSteven McGee THESIS: All artifacts internet, programmable net of money are formed using:
1) Epoch time cycle temporal intervals ex: created by silicon microchip oscillations
2) Syntax parsed, processed during epoch time cycle epoch temporal intervals
3) All things internet, internet of money, blockchains (time chains) are formed with unicast, multicast, anycast protocols. workflow logic, procedures, described by process filters, propagated by wave form motion described by nature, natural law I.e., Tesla
LUXSPIN XChat's Cutting-edge Encryption: A Game Changer for Investors and Ma...
LUXSPIN XChat's Cutting-edge Encryption: A Game Changer for Investors and Ma...tshdrdgdgvw LUXSPIN research highlights the implications of these features, which include Bitcoin-style encryption, disappearing messages, and comprehensive support for all file types.
最新版英国诺丁汉特伦特大学毕业证（NTU毕业证书）原版定制
最新版英国诺丁汉特伦特大学毕业证（NTU毕业证书）原版定制Taqyea 被学校开除？鉴于此购买文凭【q薇1954292140】在读证明+诺丁汉特伦特大学毕业证(NTU毕业证书)海外学历定制改成绩单GPA，文凭购买，毕业证办理，文凭办理只是基础业务。【q薇1954292140】一比一还原国外大学毕业证，定制国外大学学历，制作国外大学文凭，复刻国外大学毕业证书。学位证1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。
【办理诺丁汉特伦特大学成绩单Buy Nottingham Trent University Transcripts】
购买日韩成绩单、英国大学成绩单、美国大学成绩单、澳洲大学成绩单、加拿大大学成绩单（q微1954292140）新加坡大学成绩单、新西兰大学成绩单、爱尔兰成绩单、西班牙成绩单、德国成绩单。成绩单的意义主要体现在证明学习能力、评估学术背景、展示综合素质、提高录取率，以及是作为留信认证申请材料的一部分。
诺丁汉特伦特大学成绩单能够体现您的的学习能力，包括诺丁汉特伦特大学课程成绩、专业能力、研究能力。（q微1954292140）具体来说，成绩报告单通常包含学生的学习技能与习惯、各科成绩以及老师评语等部分，因此，成绩单不仅是学生学术能力的证明，也是评估学生是否适合某个教育项目的重要依据！
Buy Nottingham Trent University Diploma《正式成绩单论文没过》有文凭却得不到认证。又该怎么办？鉴于此，购买英国毕业证【q微1954292140】英国文凭购买，英国文凭购买，英国文凭定制，英国文凭补办。专业在线定制英国大学文凭，定做英国本科文凭，【q微1954292140】复制英国Nottingham Trent University completion letter。在线快速补办英国本科毕业证、硕士文凭证书，购买英国学位证、诺丁汉特伦特大学Offer，英国大学文凭在线购买。
主营项目：
1、真实教育部国外学历学位认证《英国毕业文凭证书快速办理诺丁汉特伦特大学成绩单水印》【q微1954292140】《论文没过诺丁汉特伦特大学正式成绩单》，教育部存档，教育部留服网站100%可查.
2、办理NTU毕业证，改成绩单《NTU毕业证明办理诺丁汉特伦特大学毕业证办理需要多久拿到？》【Q/WeChat：1954292140】Buy Nottingham Trent University Certificates《正式成绩单论文没过》，诺丁汉特伦特大学Offer、在读证明、学生卡、信封、证明信等全套材料，从防伪到印刷，从水印到钢印烫金，高精仿度跟学校原版100%相同.
3、真实使馆认证（即留学人员回国证明），使馆存档可通过大使馆查询确认.
4、留信网认证，国家专业人才认证中心颁发入库证书，留信网存档可查.
英国诺丁汉特伦特大学毕业证(NTU毕业证书）NTU文凭【q微1954292140】高仿真还原英国文凭证书和外壳，定制英国诺丁汉特伦特大学成绩单和信封。真实可查毕业证NTU毕业证【q微1954292140】办留服认证诺丁汉特伦特大学offer/学位证毕业证购买、留信官方学历认证（永久存档真实可查）采用学校原版纸张、特殊工艺完全按照原版一比一制作。帮你解决诺丁汉特伦特大学学历学位认证难题。
Trading API and Automation – Quantageddon 2.0 @ IIT Chennai
Trading API and Automation – Quantageddon 2.0 @ IIT ChennaiMarketcalls This presentation from the Quantageddon 2.0 workshop at IIT Chennai is a hands-on guide to setting up your own trading desk using Python and OpenAlgo. Whether you’re a beginner exploring algorithmic trading or a seasoned quant developer, this deck walks you through:
• The fundamentals of trading strategies
• Essential Python libraries for data, technical analysis, and backtesting
• Real-time market interaction using OpenAlgo APIs
• Live execution with WebSocket and REST API
• Visualizing strategies using TradingView and Plotly
• Integrating with brokers, and
• End-to-end code snippets for historical data, order placement, and real-time LTP feeds
Also included: An architectural overview of OpenAlgo, an open-source, self-hostable algo trading platform built for the next-gen trading automation stack.
Perfect for coders, quants, and FinTech enthusiasts.
📎 Download OpenAlgo → https://openalgo.in
A Beginner’s Guide to Investing by Tom Leydiker
A Beginner’s Guide to Investing by Tom LeydikerTom Leydiker A Beginner’s Guide to Investing by Tom Leydiker
最新版西班牙拉科鲁尼亚大学毕业证（UDC毕业证书）原版定制
最新版西班牙拉科鲁尼亚大学毕业证（UDC毕业证书）原版定制Taqyea 挂科无法毕业鉴于此购买文凭【q薇1954292140】一比一原版(UDC毕业证)拉科鲁尼亚大学毕业证如何办理改成绩单GPA，文凭购买，毕业证办理，文凭办理只是基础业务。【q薇1954292140】一比一还原国外大学毕业证，定制国外大学学历，制作国外大学文凭，复刻国外大学毕业证书。学位证1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。
【办理拉科鲁尼亚大学成绩单Buy Universidade da Coruña Transcripts】
购买日韩成绩单、英国大学成绩单、美国大学成绩单、澳洲大学成绩单、加拿大大学成绩单（q微1954292140）新加坡大学成绩单、新西兰大学成绩单、爱尔兰成绩单、西班牙成绩单、德国成绩单。成绩单的意义主要体现在证明学习能力、评估学术背景、展示综合素质、提高录取率，以及是作为留信认证申请材料的一部分。
拉科鲁尼亚大学成绩单能够体现您的的学习能力，包括拉科鲁尼亚大学课程成绩、专业能力、研究能力。（q微1954292140）具体来说，成绩报告单通常包含学生的学习技能与习惯、各科成绩以及老师评语等部分，因此，成绩单不仅是学生学术能力的证明，也是评估学生是否适合某个教育项目的重要依据！
Buy Universidade da Coruña Diploma《正式成绩单论文没过》有文凭却得不到认证。又该怎么办？鉴于此，购买西班牙毕业证【q微1954292140】西班牙文凭购买，西班牙文凭购买，西班牙文凭定制，西班牙文凭补办。专业在线定制西班牙大学文凭，定做西班牙本科文凭，【q微1954292140】复制西班牙Universidade da Coruña completion letter。在线快速补办西班牙本科毕业证、硕士文凭证书，购买西班牙学位证、拉科鲁尼亚大学Offer，西班牙大学文凭在线购买。
【主营项目】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理毕业证|办理拉科鲁尼亚大学毕业证（UDC毕业证书）文凭: 买大学毕业证|买大学文凭【q薇1954292140】学位证明书如何办理申请？
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理拉科鲁尼亚大学毕业证【q薇1954292140】西班牙学位证（UDC毕业证书）拉科鲁尼亚大学毕业证书如何办理国外大学毕业证, 文凭办理, 国外文凭办理, 留信网认证
三.材料咨询办理、认证咨询办理拉科鲁尼亚大学毕业证（UDC毕业证书）请加学历顾问【微信:1954292140】毕业证购买指大学文凭购买，毕业证办理和文凭办理。学院文凭定制，学校原版文凭补办，扫描件文凭定做，100%文凭复刻。经常操作的国家有美国毕业证，英国毕业证，澳洲毕业证，加拿大毕业证，以及德国毕业证，法国毕业证、荷兰毕业证、瑞士毕业证、日本毕业证、韩国毕业证、新西兰毕业证、新加坡毕业证、泰国毕业证、马来西亚毕业证等。包括了本科毕业证，硕士毕业证。
Population aging DSGE OLG NK model Euro Zone
Population aging DSGE OLG NK model Euro Zonesradomska Population aging through the lens of DSGE-OLG-NK model: implications for unemployment and monetary policy in the Euro area
Due Diligence 2.0- Streamlining Investment Decisions.pdf
Due Diligence 2.0- Streamlining Investment Decisions.pdfJasper Colin Due diligence, redefined! Discover how a private equity firm cut its research time by 30% using data-driven insights from Jasper Colin.
Kanak Capital Markets is a globally regulated online trading platform offerin...
Kanak Capital Markets is a globally regulated online trading platform offerin...Kanak Capital Markets