Search Results for "ecmascript"
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Showing 81 open source projects for "ecmascript"
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ECMAScript
Status, process, and documents for ECMA-262
...It is the twelfth edition of the ECMAScript Language Specification. Since publication of the first edition in 1997, ECMAScript has grown to be one of the world's most widely used general-purpose programming languages. It is best known as the language embedded in web browsers but has also been widely adopted for server and embedded applications. ECMAScript is based on several originating technologies, the most well-known being JavaScript (Netscape) and JScript (Microsoft). ... -
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moejs
A pure-Go JavaScript runtime built for running many plugin sandboxes
...It focuses on fast execution, low memory consumption, and efficient handling of many concurrent plugin instances. The engine supports modern JavaScript features, including ES modules, classes, promises, async/await, Proxy, and BigInt. It passes a large collection of ECMAScript Test262 compatibility tests. Its lightweight runtime design allows applications to create separate execution environments for individual requests. Benchmarks demonstrate performance improvements over other pure-Go JavaScript engines in selected plugin workloads. Developers can embed the runtime without depending on a separate JavaScript installation or C-based execution engine. ... -
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NiL.JS
JavaScript engine for .NET written in C#
NiL.JS is a JavaScript engine written in C#, capable of executing ECMAScript 6.0 (ES2015) code. It allows embedding JavaScript execution within .NET applications, providing a bridge between C# and JavaScript. -
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FormatJS
The monorepo home to all of the FormatJS related libraries
...It includes a set of core libraries that build on the JavaScript Intl built-ins and industry-wide i18n standards, plus a set of integrations for common template and component libraries. For most web projects, internationalization happens in the template or view layer, so we've built integrations with React & Vue. FormatJS is aligned with: ECMAScript Internationalization API (ECMA-402), Unicode CLDR, and ICU Message syntax. By building on these industry standards, FormatJS leverages APIs in modern browsers and works with the message syntax used by professional translators. FormatJS has been tested in all the major browsers (IE11, Chrome, FF & Safari) on both desktop and mobile devices. -
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ESLint
The pluggable linting utility for identifying patterns in Javascript
ESLint is an open source tool for identifying and reporting on patterns found in ECMAScript/JavaScript code. ESLint is written using Node.js -
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lot
Sandbox for isolating ECMAScript code
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Hello JavaScript
Course repository designed to teach JavaScript from scratch in Spanish
hello-javascript is a comprehensive course repository designed to teach JavaScript from scratch in Spanish, pairing source code with hours of video content and hundreds of exercises. It covers the JavaScript language core, from variables and control flow to functions, objects, arrays, and modern ECMAScript features. The project also touches the browser and Node.js ecosystems so learners can understand both client and server contexts. Exercises and lesson organization make it easy to follow along, practice, and review concepts as you go. The repository is openly licensed and structured so you can clone it, experiment locally, and track your learning progress. ... -
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txiki.js
A tiny JavaScript runtime
...It is built on top of QuickJS-ng as its JavaScript engine and uses libuv for asynchronous I/O and system-level operations, allowing it to support a wide range of platform capabilities. The runtime aims to implement modern ECMAScript standards while aligning with WinterCG specifications, making it suitable for both server-side and scripting use cases. txiki.js includes built-in support for web platform APIs such as fetch, WebSocket, and timers, bridging the gap between browser and server environments. It also offers low-level system features like TCP and UDP sockets, file system access, and process management, enabling developers to build full applications without external dependencies. ... -
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bignumber.js
A JavaScript library for arbitrary-precision decimal arithmetic
...Includes a toFraction and a correctly-rounded squareRoot method. Supports cryptographically secure pseudo-random number generation. Wide platform compatibility, uses JavaScript 1.5 (ECMAScript 3) features only. If a smaller and simpler library is required see big.js. It's less than half the size but only works with decimal numbers and only has half the methods. It also has fewer configuration options than this library, and does not allow NaN or Infinity. See also decimal.js, which among other things adds support for non-integer powers, and performs all operations to a specified number of significant digits. -
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Meriyah
A 100% compliant, self-hosted javascript parser
Meriyah is a high-performance, fully compliant JavaScript parser that generates ESTree-compatible Abstract Syntax Trees (ASTs). Designed for speed and stability, it serves as an alternative to parsers like Acorn and Esprima. -
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TypeScript
Application-scale JavaScript
TypeScript is an open source programming language that is a typed superset of JavaScript. It adds optional static typing to JavaScript, which can support tools for large-scale JavaScript applications for any browser, host and OS. TypeScript compiles to clean, simple JavaScript, and uses existing JavaScript code and libraries. It also offers support for the latest and evolving JavaScript features, such as async functions and decorators. -
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core-js
Modular standard library for JavaScript
Modular standard library for JavaScript. Includes polyfills for ECMAScript up to 2021: promises, symbols, collections, iterators, typed arrays, many other features, ECMAScript proposals, some cross-platform WHATWG / W3C features and proposals like URL. You can load only required features or use it without global namespace pollution. The maintainers of core-js and the maintainers of thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. ... -
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JerryScript
Ultra-lightweight JavaScript engine for the Internet of Things
JerryScript is a lightweight JavaScript engine for resource-constrained devices such as microcontrollers. It can run on devices with less than 64 KB of RAM and less than 200 KB of flash memory. -
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Babel
The compiler for writing next generation JavaScript
Babel is a toolchain that helps you write code in the latest version of JavaScript. It converts ECMAScript 2015+ code into a backwards compatible version of JavaScript that can be run by older JavaScript engines. With Babel you can transform syntax, polyfill features that are missing in your target environment, transform source code and more! -
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ember-intl
Localization library for any Ember Application or Addon
...Ember-intl is an internationalization addon that unlocks translating simple to complex messages using built-in pluralization rules, number and datetime formatting, with support for over 150 languages. Ember-intl is now entirely built on native ECMAScript Internationalization APIs that are now supported by all modern browsers. Locale-aware numbers. Formatting of currencies, decimals, and percentages. Locale-aware dates and times formatting. Locale-aware display of relative time. i.e, "in 1 day", "2 years ago", etc. Support for 150+ languages. Built largely on standards. ICU message syntax & Native Intl API. ... -
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SonarJS
SonarSource Static Analyzer for JavaScript and TypeScript
This SonarSource project is a static code analyzer for JavaScript, TypeScript and CSS languages. In order to analyze JavaScript, TypeScript or CSS code, you need to have a supported version of Node.js installed on the machine running the scan. Recommended versions are the previous LTS version v14 and the latest version - v16. We recommend using the latest available LTS version (v16 as of today) for optimal stability and performance. v12 is still supported, but it already reached end-of-life... -
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MicroQuickJS
Public repository of the Micro QuickJS Javascript Engine
...The engine is intentionally small in ROM footprint while still providing practical performance comparable to lightweight desktop-grade embeddable engines in its class. To stay small and predictable, it supports a subset of JavaScript close to ES5 rather than modern ECMAScript features, which keeps implementation complexity and runtime overhead lower. It also offers a stricter mode that forbids certain error-prone or inefficient constructs, encouraging safer and more deterministic code in embedded environments. -
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Valtio
Valtio makes proxy-state simple for React and Vanilla
...It allows you to manage mutable state through normal JavaScript objects, while providing React hooks (useSnapshot) and subscription utilities to create optimized component re-renders and state observation. It uses ECMAScript Proxies and supports deep state tracking, making state mutation intuitive and powerful without sacrificing performance or compatibility with React's concurrency model. -
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Scribe.js
JavaScript OCR and text extraction for images and PDFs
...In addition to simple text extraction, Scribe.js supports writing or injecting a high-quality invisible text layer back into PDFs, effectively making them searchable and improving usability for indexing or accessibility. It is written in modern ECMAScript Modules (ESM), so it can be imported in both browser and Node.js environments without a build step, though browser usage requires same-origin hosting of the files. -
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gulp-babel
Gulp plugin for Babel
...When Babel is used via a wrapper, it may also be necessary, or at least more useful, to pass the options via configuration files. Babel is a toolchain that is mainly used to convert ECMAScript 2015+ code into a backward-compatible version of JavaScript in current environments. -
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UglifyJS 3
JavaScript parser, mangler, compressor, beautifier toolkit
UglifyJS is a JavaScript compressor/minifier written in JavaScript. It also contains tools that allow one to automate working with JavaScript code. A parser which produces an abstract syntax tree (AST) from JavaScript code. A code generator which outputs JavaScript code from an AST, also providing the option to get a source map. A compressor (optimizer). it uses the transformer API to optimize an AST into a smaller one. A mangler, reduce names of local variables to (usually) single-letters.... -
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JavaScript Standard Style
JavaScript style guide, linter, and formatter
JavaScript Standard Style is a JavaScript style guide with linter and automatic formatter. It’s the simple, easy, fuss-free way to get a consistent style in your project. No more hundred-line style configuration files for every module/project; no more messy or inconsistent code; and no more wasting time sending code back and forth between reviewer and contributor. With Standard, your code is automatically formatted, no configuration necessary. With Standard, code clarity and community... -
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Stellarium
A planetarium software that shows a 3D simulation of the night sky
Stellarium renders 3D photo-realistic skies in real time with OpenGL. It displays stars, constellations, planets, nebulae and others things like ground, landscape, atmosphere, etc. -
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multinotes
Text architecture for music theory.
...Furthermore, dynamic interactive documents can be useful for presenting complicated interdependencies to the reader more clearly, far beyond conventional paper publication. The mulitNotes text architecture and processing pipeline is based on d2d and standard technologies (XSLT, ECMAScript. LilyPond, PostScript, etc.) and addresses these issues. An overview about the software architecture and its operation is given in: Journal of the Text Encoding Initiative, Open Issue 18/2024: "Using d2d for Writing XML --- The multiNotes Text Architecture for Musical Analysis" https://doi.org/10.4000/132ex -
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SystemJS
Dynamic ES module loader
...It provides a workflow where code written for production workflows of native ES modules in browsers (like Rollup code-splitting builds), can be transpiled to the System.register module format to work in older browsers that don't support native modules, running almost-native module speeds while supporting top-level await, dynamic import, circular references and live bindings, import.meta.url, module types, import maps, integrity and Content Security Policy with compatibility in older browsers back to IE11. SystemJS allows to write and use modular javacsript code that relies on ECMAScript 6 import and export statements. One good example is moment.js library, which started publishing ECMAScript 6 source code on npm since 2.10.0 release of moment.js. SystemJS requries a transpiler to compile ECMAScript 6 javacsript into a code that could be run in current versions of browsers and node.js.
