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Web browser JavaScript frameworks and libraries, such as Angular, Ember.js, ExtJS, Knockout.js, Meteor.js, React, Vue.js, and Svelte have adopted SPA principles. Aside from ExtJS, all of these are free. AngularJS is a discontinued fully client-side framework. AngularJS's templating is based on bidirectional UI data binding
Each Bootstrap component consists of an HTML structure, CSS declarations, and in some cases accompanying JavaScript code. They also extend the functionality of some existing interface elements, including for example an auto-complete function for input fields. Example of a webpage using Bootstrap framework rendered in Firefox
React code is made of entities called components. [14]: 10–12 These components are modular and reusable. [14]: 70 React applications typically consist of many layers of components. The components are rendered to a root element in the DOM using the React DOM library.
A virtual DOM is a lightweight JavaScript representation of the Document Object Model (DOM) used in declarative web frameworks such as React, Vue.js, and Elm. [1] Since generating a virtual DOM is relatively fast, any given framework is free to rerender the virtual DOM as many times as needed relatively cheaply.
JavaScript (/ ˈ dʒ ɑː v ə s k r ɪ p t / ⓘ), often abbreviated as JS, is a programming language and core technology of the World Wide Web, alongside HTML and CSS. Ninety-nine percent of websites use JavaScript on the client side for webpage behavior. [10] Web browsers have a dedicated JavaScript engine that executes the client code.
The predecessor of Svelte is Ractive.js, which Rich Harris created in 2013. [11] Version 1 of Svelte was written in JavaScript and was released on 29 November 2016. [12] The name Svelte was chosen by Rich Harris and his coworkers at The Guardian. [12] Version 2 of Svelte was released on 19 April 2018.
YUI Test is a testing framework for browser-based JavaScript solutions. Using YUI Test, you can easily add unit testing to your JavaScript solutions. While not a direct port from any specific xUnit framework, YUI Test does derive some characteristics from nUnit and JUnit.
Instead of requiring user experience (UX) developers to write GUI code, they can use the framework markup language (e.g. XAML) and create data bindings to the view model, which is written and maintained by application developers. The separation of roles allows interactive designers to focus on UX needs rather than programming of business logic.