250 Most Popular Javascript Packages

Tool for transforming styles with JS plugins

Promisify a callback-style function

Extract the non-magic parent path from a glob string.

ECMAScript JS AST traversal functions

Recursively mkdir, like `mkdir -p`

JSON for humans.

Resolve the path of a module like `require.resolve()` but from a given path

A regular expression to match all Emoji-only symbols as per the Unicode Standard.

Traverse JSON Schema passing each schema object to callback

Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js

Glob matching for javascript/node.js. A replacement and faster alternative to minimatch and multimatch.

Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`

Cross platform child_process#spawn and child_process#spawnSync

Process execution for humans

resolve like require.resolve() on behalf of files asynchronously and synchronously

Bash-like brace expansion, implemented in JavaScript. Safer than other brace expansion libs, with complete support for the Bash 4.3 braces specification, without sacrificing speed.

Implements the WebIDL algorithms for converting to and from JavaScript values

easily create complex multi-column command-line-interfaces

Like which(1) unix command. Find the first instance of an executable in the PATH.

Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet

Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.78 million test assertions.

Global identifiers from different JavaScript environments

This package contains shared types of Jest's packages.

A library to create readable "multipart/form-data" streams. Can be used to submit forms and file uploads to other web applications.

Brand checking of React Elements.

User-friendly glob matching

Returns true if a value is a plain object, array or function.

Constants and utilities about visitor keys to traverse AST.

Check if something is a Node.js stream

Generate errors that contain a code frame that point to source locations.

Get the PATH environment variable key cross-platform

Brace expansion as known from sh/bash

An implementation of the WHATWG URL Standard's URL API and parsing machinery

utils for webpack loaders

YAML 1.2 parser and serializer

Find the root directory of a Node.js project or npm package

Make a directory and its parents if needed - Think `mkdir -p`

Babel Types is a Lodash-esque utility library for AST nodes

Create HTTP error objects

the bare-bones internationalization library used by yargs

Convert Windows backslash paths to slash paths

Parse JSON with more helpful errors

A comprehensive library for mime-type mapping

Regular expression for matching a shebang line

Get the command from a shebang

TypeScript definitions for yargs

Convert character encodings in pure javascript.

Transforms css values and at-rule params into the tree

Make a callback- or promise-based function support both promises and callbacks.

parse argument options