Language

Runtime library for TypeScript helper functions

Get and robustly cache all JS language-level intrinsics at first require time

TypeScript is a language for application scale JavaScript development

utility box for ECMAScript language tools

HTTP content negotiation

A query library for ECMAScript AST using a CSS selector like query language.

Character encoding detector

A Query Language and Runtime which can target any service.

unist utility to visit nodes

Get an iterator for any JS language value. Works robustly across all environments, all versions.

Work with IANA language tags.

Full BCP 47 language subtag data from the official IANA repository, in JSON format with multiple indices.

Get the system locale

Syntax highlighting with language autodetection.

Mapping between standard locale identifiers and Windows locale identifiers (LCID)

Strip line and/or block comments from a string. Blazing fast, and works with JavaScript, Sass, CSS, Less.js, and a number of other languages.

Polyfills for various browsers including commonly used language features

JS language shims used by Airbnb.

Robust, expressive, and feature-rich CSS superset

Types used by the Language server for node

Simple, fast, powerful parser toolkit for JavaScript.

An extensible static analysis linter for the TypeScript language

VSCode Language Server Protocol implementation

Regular expression for matching HTML comments

Language server implementation for node

Unfancy JavaScript

The runtime components for the pug templating language

A clean, whitespace-sensitive template language for writing HTML

Angular - language services

A fun, easy and simple programming language built on top of nodejs

JSBI is a pure-JavaScript implementation of [the ECMAScript BigInt proposal](https://tc39.es/proposal-bigint/), which officially became a part of the JavaScript language in ES2020.

An enterprise-class UI design language and React components implementation

language detector used in browser environment for i18next

Unfancy JavaScript

HTML/CSS/JSON/ESLint language servers extracted from [vscode](https://github.com/Microsoft/vscode).

Convert millisecond durations to English and many other languages.

Lookup the closest locale from among object keys

Language service for JSON

A language server for Apollo GraphQL projects

Interface to the GraphQL Language Service

An online parser for GraphQL for use in syntax-highlighters and code intelligence tools

Utilities to support the GraphQL Language Service

Types for building GraphQL language services for IDEs

Returns a list of strings representing the user's preferred languages.

Velocity Template Language(VTL) for JavaScript

A clean, whitespace-sensitive template language for writing HTML

Language support infrastructure for the CodeMirror code editor

A CSS-inspired language to select, sequence, and compose DOM events.

String formatting inspired by Python's str.format()

A natural language date parser in Javascript