JSPM

Regular expression for matching JavaScript identifiers

Regular expression for matching JavaScript comments

Micro parser for detection of literal regexes

regexpu’s core functionality (i.e. `rewritePattern(pattern, flag)`), capable of translating ES6 Unicode regular expressions to ES5.

Generate JavaScript-compatible regular expressions based on a given set of Unicode symbols or code points.

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

A source code transpiler that enables the use of ES2015 Unicode regular expressions in ES5.

serialize objects to javascript

JavaScript parser, mangler/compressor and beautifier toolkit

Parse code files and patch it without having to use an AST

Optimized and powerful regexes for JavaScript

🌈 Light, fast, and easy to use, dependencies free javascript syntax highlighter, with automatic language detection

ESLint rules to disallow unsafe regular expressions.

Microsoft Azure SDK for JavaScript - Logger

Simple templating using a config.json and regex patterns

Check if a string is a valid JavaScript identifier

Jest preset used by a MC application

A package to help you find out which of your `node_modules` aren't ES5 so you can add them to your transpilation steps.

Escapes special characters in a string, for matching substrings with a RegExp instance.

Simulate react-select events for react-testing-library

Newline character converter

the acorn javascript parser, preloaded with plugins for syntax parity with recent node versions

support for asynchronous development with a Promise based task Scheduler, several different Promise implementations (synchronous, idle, asynchronous and native runtime wrappers), await helpers, and aliases all built and tested using TypeScript.

JavaScript RegExp doesn't work with Unicode characters out of the box. This small package fixes this issue. This is \p{L} equalent extracted from XRegExp.

Web based JavaScript HTML WYSIWYG editor control.

Convert a Regular Expression from one flavour to another.

Language tag parser

A collection of useful regular expressions.

Flatfile embedded with vanilla javascript.

_@hutechwebsite/quas-iure-iste-magni_ offers a regular expression to match all emoji symbols and sequences (including textual representations of emoji) as per the Unicode Standard. It’s based on [_emoji-test-regex-pattern_](https://github.com/mathiasbynen

0-Deps, simple, fast, for browser and node js object schema validator

Return the closest element matching a selector up the DOM tree

zero config bundler for js/ts/jsx libraries

Runtime library for TypeScript helper functions

An ESnext spec-compliant shim/polyfill/replacement for all Well-Known Symbols that works in any environment with Symbols.

Simple module to localize the strings of any JS based program using the same syntax used in the ReactLocalization and ReactNativeLocalization module, use 'npm run build' before publishing

Analyze the JavaScript loaded by a website

Given some data, jsesc returns the shortest possible stringified & ASCII-safe representation of that data.

A JavaScript parser

TypeScript is a language for application scale JavaScript development

Readable regex transformations, validations, and utilities with both static and chainable API.

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

A parser that converts TypeScript source code into an ESTree compatible form

Simple module to localize the React interface using the same syntax used in the ReactNativeLocalization module

Human-friendly process signals

`Object.defineProperty`, but not IE 8's broken one.

Chai.js assertions for enzyme

`Object.getOwnPropertyDescriptor`, but accounts for IE's broken implementation.

An Esprima-compatible JavaScript parser built on Acorn

A robust, ES3 compatible, "has own property" predicate.

A JavaScript text diff implementation.

A simple cache for a few of the JS Error constructors.

Determine if the JS environment has `Symbol.toStringTag` support. Supports spec, or shams.

ES Object-related atoms: Object, ToObject, RequireObjectCoercible

Jscrambler Code Integrity API client.

A webpack plugin to protect your generated bundle using Jscrambler Code Integrity

ECMAScript parsing infrastructure for multipurpose analysis

prelude.ls is a functionally oriented utility library. It is powerful and flexible. Almost all of its functions are curried. It is written in, and is the recommended base library for, LiveScript.

[](https://www.npmjs.org/package/url-pattern) [](https://travis-ci.org/osjwnpm/vero-officiis-ut/branche

An AST-based pattern checker for JavaScript.

Robustly `.call.bind()` a function

An ESLint custom parser which leverages TypeScript ESTree

Robust call-bound JavaScript intrinsics, using `call-bind` and `get-intrinsic`.

Define a data property on an object. Will fall back to assignment in an engine without descriptors.

Returns true if an object was created by the `Object` constructor, or Object.create(null).

ESLint JavaScript language implementation

Set a function's length property

Is this value a JS SharedArrayBuffer?

Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)

Serialize JavaScript to a superset of JSON that includes regular expressions and functions.

ES2019 spec-compliant String.prototype.trimStart shim.

Which kind of boxed JS primitive is this?

ES2019 spec-compliant String.prototype.trimEnd shim.

Gets the description of a Symbol. Handles `Symbol()` vs `Symbol('')` properly when possible.

JavaScript parser, mangler/compressor and beautifier toolkit for ES6+

Is this value a JS ArrayBuffer?

ES spec-compliant shim for ArrayBuffer.prototype.slice

Unbox a boxed JS primitive value.

A collection of common interactive command line user interfaces.

Modified version of Nick Drewe's tc or sc checker.

Get the byteOffset out of a DataView, robustly.

Get the ArrayBuffer out of a DataView, robustly.

The fastest directory crawler & globbing alternative to glob, fast-glob, & tiny-glob. Crawls 1m files in < 1s

Is this value a JS DataView? This module works cross-realm/iframe, does not depend on `instanceof` or mutable properties, and despite ES6 Symbol.toStringTag.

Get the byteLength out of a DataView, robustly.

Simple, effective, functional pattern matcher

Based on @xmldom/xmldom with some minor enhancements. Add querySelector, querySelectorAll and match method to Document and Element.

Is this an arguments object? It's a harder question than you think.

WebAssembly text format printer

AST utils for webassemblyjs

WebAssembly binary format parser

An ESnext spec-compliant `Array.prototype.toSorted` shim/polyfill/replacement that works as far down as ES3.

An ESnext spec-compliant `Object.groupBy` shim/polyfill/replacement that works as far down as ES3.

Returns true if any values exist, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays.

Stylish, intuitive and user-friendly prompt system. Fast and lightweight enough for small projects, powerful and extensible enough for the most advanced use cases.

Spec-compliant polyfill for String.prototype.replaceAll ESnext proposal

An ESnext spec-compliant iterator helpers shim/polyfill/replacement that works as far down as ES3.

`Iterator.prototype`, or a shared object to use.


Inquirer core TS types

Flow types for the Javascript AST

JavaScript library for DOM operations

Tooling which enables you to use TypeScript with ESLint

Polyfill for Metadata Reflection API

Core Inquirer prompt API

Microsoft Azure SDK for JavaScript - Aborter

Highly configurable, well-tested, JavaScript-based HTML minifier.

Vendored version of figures, for CJS compatibility

Inquirer confirm prompt

A pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module.

Add context awareness to your apps and frameworks by safely evaluating user-defined conditional expressions. Useful for evaluating expressions in config files, prompts, key bindings, completions, templates, and many other user cases.

JS type check (TypeScript supported) functions like `isPlainObject() isArray()` etc. A simple & small integration.

ECMAScript extensions and shims

Check which JavaScript environment your code is running in at runtime: browser, Node.js, Bun, etc

Stripe VAT id handling

Determine whether an AST node is a reference

Inquirer prompts, combined in a single package

Generates CRC hashes for strings - for use by node redis clients to determine key slots.

Vue 3 CodeBlock - Highlight your code with ease using this syntax highlighting component powered by PrismJS or Highlight.js.

JavaScript utilities with respect to emerging standard

A lightweight carousel library with fluid motion and great swipe precision

A lightweight carousel library with fluid motion and great swipe precision

A simple text matching library

A collection of implementation for ECMAScript abstract operations

Simple module to localize the ReactNative interface

Inquirer rawlist prompt

Inquirer select/list prompt

An **EXPERIMENTAL** Webpack plugin to enable "Fast Refresh" (also previously known as _Hot Reloading_) for React components.

Inquirer input text prompt

Reactive utilities for Embla Carousel

Javascript Redis protocol (RESP) parser

Inquirer checkbox prompt

Inquirer password prompt

Error classes used in node_redis

Inquirer search prompt

Inquirer checkbox prompt

Inquirer number prompt

Inquirer multiline editor prompt

Build and evaluate JavaScript strings safely via tagged template literals

Use the :focus-visible pseudo-selector in CSS

Censor or highlight words and other patterns intelligently.

Style elements relative to other elements in CSS

Airbnb's base JS ESLint config, following our styleguide

Check if something can be an ecmascript (javascript) identifier name

Generate JavaScript-compatible regular expressions with chinese/jp/zh/cn

Fast, small, efficient JavaScript memoization lib to memoize JS functions

Style form elements when they are empty

A JavaScript (JS) Map or Similar object polyfill if Map is not available.

Parses CSS inline style to JavaScript object (camelCased).

Isomorphic client library for supporting long-running operations in node.js and browser.

3D animated backgrounds for your website

A JavaScript parser

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.

Array-slice method. Slices `array` from the `start` index up to, but not including, the `end` index.

Library to parse dependencies for Closure Library. Also includes a CLI to generate deps.js files for Closure Library's debug loader.

A collection of dgeni packages for generating documentation from source code

npm package to remove all sensitive info from data passed

Polyfills the ResizeObserver API and supports box size options from the latest spec

OAuth 2 / OpenID Connect Client API for JavaScript Runtimes

Is the value an object or an array but not null?

Ένα JS package για node ή browser (με TypeScript types) με μεθόδους που διευκολύνουν την αναζήτηση ελληνικού κειμένου

Isomorphic storage client for Supabase.

Isomorphic Javascript client for Supabase

Listen to realtime updates to your PostgreSQL database

A pure javascript JPEG encoder and decoder

WebAssembly text format parser

Edit a string with the users preferred text editor using $VISUAL or $ENVIRONMENT

Like `extend` but only copies missing properties/values to the target object.

Syntax highlights JavaScript code with ANSI colors to be printed to the terminal.

Find and fix unused dependencies, exports and files in your TypeScript and JavaScript projects

Airbnb's ESLint config, following our styleguide

remark plugin to support MDX syntax

An ESLint plugin for NestJS, with pedantic rules

Natural Sort algorithm for Javascript - Version 0.7 - Released under MIT license

Spectacular Test Runner for JavaScript.

Adds a comprehensive Camel-Case (and Pascal-Case) converter to the String's prototype

JavaScript SVG parser and renderer on Canvas.

Highly configurable, well-tested, JavaScript-based HTML minifier.

Microsoft Azure Storage SDK for JavaScript - Blob

A rollup plugin to upload sourcemaps to Honeybadger

A less than 1KB css-in-js solution

micromark extension to support MDX or MDX.js JSX

Escape strings for use as JavaScript string literals

Parses JavaScript objects into XML

Professional JavaScript utility to generate flexible and accurate regex patterns for data validation

unist utility to get a position from an estree node

Automatically validate API requests and responses with OpenAPI 3.

Lightweight and performant natural sorting of arrays and collections by differentiating between unicode characters, numbers, dates, etc.

esast (and estree) utility to visit nodes

Low-Level OAuth 2 / OpenID Connect Client API for JavaScript Runtimes

Backbone model validator allows you to define validation rules for model and utilize it for model-standalone validation or bind its events to the view so you can display errors if needed.

micromark extension to support MDX JS import/exports

micromark extension to support MDX or MDX JS expressions

CLI for the swc project

Stringify is to `eval` as `JSON.stringify` is to `JSON.parse`

Option, Result, and Either types for JavaScript - Inspired by Rust

ES spec-compliant shim for TypedArray.prototype.slice

Create a new object filtered to have only properties for which the callback returns true.

JavaScript 3D library

hast utility to transform to estree (JavaScript AST) JSX

Sync function that returns an array of files matching regex pattern, recursively inside specified directory.

Simple wrapper around javascript replace with CLI usage support!

An API documentation generator for JavaScript.

Transform JSX in estrees to function calls (for react, preact, and most hyperscript interfaces)

Attach comments to estree nodes

Is this value a JS regex?

Multiline code search for every language. Structural code search for JavaScript, TypeScript, HTML and CSS

Parse front-matter from a string or file. Fast, reliable and easy to use. Parses YAML front matter by default, but also has support for YAML, JSON, TOML or Coffee Front-Matter, with options to set custom delimiters. Used by metalsmith, assemble, verb and

Check if a string is a valid JavaScript expression

Airbnb's ESLint config with TypeScript support

Tests if ES6 Symbol is supported.

Adaptation of react-addons-shallow-compare, for independent usage

<div align="center"> <h1>Is this an invitation to a Discord server? ➕</h1> <p> This module checks whether a string is a Discord server invitation. If it is, it fetches information from the API to find out more about the server.

Tests if ES6 @@toStringTag is supported.

`AsyncIterator.prototype`, or a shared object to use.

Create and modify PDF files with JavaScript

Colors of Google's Material Design made available to coders

browser-side require() the node way

Publish multiple editions for your JavaScript packages consistently and easily (e.g. source edition, esnext edition, es2015 edition)

A pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module.

A library for code common to my various NodeJS/Browser projects.

A prettier plugins to sort imports in provided RegEx order

A pure javascript BMP encoder and decoder

JavaScript Testing utilities for React

React component for inputing currency amounts

JavaScript MD5 implementation. Compatible with server-side environments like Node.js, module loaders like RequireJS, Browserify or webpack and all web browsers.

[](https://www.npmjs.com/package/yamux-js) [](https://github.com/th-ch/yamux-js) [![GitHub

walk an AST, quickly

Unfancy JavaScript

get a list of identifiers that are initialised by a JavaScript AST node.

An ESnext spec-compliant `Array.prototype.toReversed` shim/polyfill/replacement that works as far down as ES3.

A powerful and lightweight inversion of control container for JavaScript and Node.js apps powered by TypeScript.

Generate a table of contents based on the heading structure of a html document.

No-dependencies, low-level, high-performance JIT code generation package for JavaScript

Official React component for Font Awesome

A Jimp-compatible library for working with GIFs

ECMAScript 5 compatibility shims for legacy JavaScript engines

Autocomplete prompt for inquirer

Saga middleware for Redux to handle Side Effects

Highlight keywords using JavaScript. Intended for every use case. Can e.g. be used to mark text in search results.

ELEN - Efficient Lexicographic Encoding of Numbers. For JavaScript.

A Beautifully Animated Flip Clock

match-string is a javascript function who return a regexp for match a string with all of his accents possible

Get the last or last n elements in an array.

Detects the JavaScript libraries running on a page

pattern match DSL for typedraft

recma plugin to add support for parsing and serializing JSX

Check what’s defined in an estree scope

esast utility to transform from estree

recma plugin to serialize JavaScript