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Archives de JS Attitude. Lodash. UI Events. ES6. Learn JavaScript. JavaScript - Apprendre le Web. Learn ES2015 · Babel. Es6features This document was originally taken from Luke Hoban's excellent es6features repo. Go give it a star on GitHub! REPL Be sure to try these features out in the online REPL. Introduction ECMAScript 2015 is an ECMAScript standard that was ratified in June 2015. ES2015 is a significant update to the language, and the first major update to the language since ES5 was standardized in 2009. See the ES2015 standard for full specification of the ECMAScript 2015 language. ECMAScript 2015 Features Arrows and Lexical This Arrows are a function shorthand using the => syntax. Classes ES2015 classes are a simple sugar over the prototype-based OO pattern. Class SkinnedMesh extends THREE.Mesh { constructor(geometry, materials) { super(geometry, materials); this.idMatrix = SkinnedMesh.defaultMatrix(); this.bones = []; this.boneMatrices = []; //... } update(camera) { //... super.update(); } static defaultMatrix() { return new THREE.Matrix4(); }} Enhanced Object Literals Template Strings Destructuring.

JavaScript Lessons - Screencast Video Tutorials. Guide JavaScript. JavaScript. JavaScript (souvent abrégé en « JS ») est un langage de script léger, orienté objet, principalement connu comme le langage de script des pages web. Mais il est aussi utilisé dans de nombreux environnements extérieurs aux navigateurs web tels que Node.js, Apache CouchDB voire Adobe Acrobat. Le code JavaScript est interprété ou compilé à la volée (JIT). C'est un langage à objets utilisant le concept de prototype, disposant d'un typage faible et dynamique qui permet de programmer suivant plusieurs paradigmes de programmation : fonctionnelle, impérative et orientée objet.

Apprenez-en plus sur JavaScript. Cette section de MDN est dédiée au langage JavaScript. Le standard qui spécifie JavaScript est ECMAScript. JavaScript ne doit pas être confondu avec le langage de programmation Java. Vous cherchez à devenir un développeur web front-end ? Nous avons élaboré un cours qui comprend toutes les informations essentielles dont vous avez besoin pour atteindre votre objectif. Commencer. Référence Web API. JavaScript methods index. This article entails a listing of all JavaScript methods documented on MDN sorted alphabetically. Found 436 pages with the tag "Method": abs: The Math.abs() function returns the absolute value of a number, that is abs: The static SIMD.

%type%.abs() method returns a new SIMD data type with absolute values. This operation exists only on floating point SIMD types. Acos: The Math.acos() function returns the arccosine (in radians) of a number, that is acosh: The Math.acosh() function returns the hyperbolic arc-cosine of a number, that is add: The static Atomics.add() method adds a given value at a given position in the array and returns the old value at that position. Big: The big() method creates a <big> HTML element that causes a string to be displayed in a big font. Call: The call() method calls a function with a given this value and arguments provided individually. Get: The get() method returns a specified element from a WeakMap object. Neg: The static SIMD.

See alsoEdit. JavaScript and HTML DOM Reference. Smart Fixed Navigation. A fixed navigation that allows your users to access the menu at any time while they are experiencing your website. It's smaller than a full-width fixed header, and replaces the back-to-top button with a smarter UX solution. Browser support ie Chrome Firefox Safari Opera 9+ Web pages with a lot of content require a quick way for the user to get back to the top, where the navigation is (most of the time).

Hence the old back-to-top button. But why should the user scroll back to the top, if we can make the navigation accessible at any time right where the back-to-top button is supposed to be? No reason in 90% of the cases. Our pal Gabriele Mellera put together this animation to quickly show you the idea behind this resource: Creating the structure The structure is straightforward: the navigation and its “trigger” are inside the same #cd-nav div. Adding style Since we coded this nugget starting from mobile, we set a position: fixed for the unordered list inside the navigation #cd-nav. ECMAScript® 2017 Language Specification. Learning JavaScript Design Patterns. Design patterns are reusable solutions to commonly occurring problems in software design. They are both exciting and a fascinating topic to explore in any programming language. One reason for this is that they help us build upon the combined experience of many developers that came before us and ensure we structure our code in an optimized way, meeting the needs of problems we're attempting to solve.

Design patterns also provide us a common vocabulary to describe solutions. This can be significantly simpler than describing syntax and semantics when we're attempting to convey a way of structuring a solution in code form to others. In this book we will explore applying both classical and modern design patterns to the JavaScript programming language. Target Audience This book is targeted at professional developers wishing to improve their knowledge of design patterns and how they can be applied to the JavaScript programming language. Acknowledgments Credits Reading We already use patterns everyday. Developing Backbone.js Applications - By Addy Osmani (@addyosmani) Available free for open-source reading below or for purchase via the O'Reilly store.

Pull requests and comments always welcome. Prelude Not so long ago, “data-rich web application” was an oxymoron. Today, these applications are everywhere and you need to know how to build them. Traditionally, web applications left the heavy-lifting of data to servers that pushed HTML to the browser in complete page loads. Think of the Ajax shopping cart which doesn’t require a refresh on the page when adding an item to your basket. The rise of arbitrary code on the client-side which can talk to the server however it sees fit has meant an increase in client-side complexity.

Thankfully, there are a growing number of JavaScript libraries that can help improve the structure and maintainability of your code, making it easier to build ambitious interfaces without a great deal of effort. Target Audience Acknowledgements Credits Target Version Reading What Is MVC? What is Backbone.js? <! Views. - Progressive Web Apps With React. Débogueur - Outils de développement. Le débogueur JavaScript permet d'avancer pas à pas dans du code JavaScript et de l’examiner ou de le modifier, afin de retrouver et de corriger les bugs.

Le débogueur peut fonctionner directement dans Firefox ou être utilisé à distance, par exemple sur un appareil Firefox OS ou Firefox sur Android. Voir le guide du débogage à distance pour apprendre à connecter le débogueur à une cible distante Visite guidée de l'interface utilisateur Pour vous repérer dans le débogueur, voici une courte visite guidée de l'interface utilisateur.

Pour savoir ce qu'il est possible de faire avec le débogueur, regardez les guides pratiques suivants : Référence Étiquettes et contributeurs liés au document Dernière mise à jour par :maximelore, Thanks! If you haven’t previously confirmed a subscription to a Mozilla-related newsletter you may have to do so.

So you want to write a package manager – Medium. You woke up this morning, rolled out of bed, and thought, “Y’know what? I don’t have enough misery and suffering in my life. I know what to do — I’ll write a language package manager!” Totally. Right there with you. I take my misery and suffering in moderation, though, and since I think you might too, this design guide could help you keep most of your hair. You, or people hoping to improve an existing package manager, or curious about how they work, or who’ve realized that their spiffy new language is pretty much consigned to irrelevance without one.

Whatever. Now, I also have an ulterior motive: right now, the Go community actually DOES need proper package management, and I’m contributing to an approach. Package management is awful, you should quit right now Package management is a nasty domain. If you’ve ever created…well, basically any software, then this epiphanic progression probably feels familiar. Stop that. Oh but wait! LOLWUT is “Package Manager” Don’t do that. Meet the Cast See? Yarn. Babel · The compiler for writing next generation JavaScript.