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Mocha is a JavaScript test framework for Node.js programs, featuring browser support, asynchronous testing, test coverage reports, and use of any assertion library. [ 1 ] Assertion libraries
Node.js is a cross-platform, open-source JavaScript runtime environment that can run on Windows, Linux, Unix, macOS, and more. Node.js runs on the V8 JavaScript engine, and executes JavaScript code outside a web browser. Node.js lets developers use JavaScript to write command line tools and for server-side scripting.
This is an accepted version of this page This is the latest accepted revision, reviewed on 18 January 2025. High-level programming language Not to be confused with Java (programming language), Javanese script, or ECMAScript. JavaScript Screenshot of JavaScript source code Paradigm Multi-paradigm: event-driven, functional, imperative, procedural, object-oriented Designed by Brendan Eich of ...
The PDF.js contributor community also notes that the browser behavior of PDF.js varies with browser support for PDF.js's required features. [28] Performance and reliability will be the best on Chrome and Firefox, which are fully supported and subject to automated testing.
V8 from Google is the most used JavaScript engine. Google Chrome and the many other Chromium-based browsers use it, as do applications built with CEF, Electron, or any other framework that embeds Chromium. Other uses include the Node.js and Deno runtime systems. SpiderMonkey is developed by Mozilla for use in Firefox and its forks.
Bun is a JavaScript runtime, package manager, test runner and bundler built from scratch using the Zig programming language. [4] [5] It was designed by Jarred Sumner as a drop-in replacement for Node.js. Bun uses WebKit's JavaScriptCore as the JavaScript engine, [6] unlike Node.js and Deno, which both use V8.
Common logo used to represent MERN stacks. MEAN (MongoDB, Express.js, AngularJS (or Angular), and Node.js) [1] is a source-available JavaScript software stack for building dynamic web sites and web applications. [2] A variation known as MERN replaces Angular with React.js front-end, [3] [4] and another named MEVN use Vue.js as front-end.
While justified by the Yarn team as a need to address multiple design flaws in the typical Node.js module resolution, this change required some support from other projects in the ecosystem which took some time to materialise, adding friction to the migration from Yarn 1.22. to Yarn 2.0.