250 Most Popular Javascript Packages

type-check allows you to check the types of JavaScript values at runtime with a Haskell like type syntax.

The `util.is*` functions introduced in Node v0.12.

Fast deep equal

Ensure a function is only called once

Generate source maps

Express style path to RegExp utility

Determines if an object can be used as an array

A light-weight module that brings Fetch API to node.js

Returns true if a string has an extglob.

Recursive version of fs.readdir with streaming API.

concatenative mapdashery

HTTP server cookie parsing and serialization

It's a very fast and efficient glob library for Node.js

Generate an AST from a string template.

Share target browsers between different front-end tools, like Autoprefixer, Stylelint and babel-env-preset

Map over promises concurrently

Converts a source-map from/to different formats and allows adding/changing properties.

Run a function exactly one time

Provides metadata and conversions from repository urls for GitHub, Bitbucket and GitLab

string representations of objects in node and the browser

Encode & decode XML and HTML entities with ease & speed

Fixes stack traces for files with source maps

RFC6265 Cookies and Cookie Jar for node.js

Standard library

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

Big number implementation in pure javascript

Determine if an object is a Buffer

A utility function to get the type of a value

List of binary file extensions

Check if a file path is a binary file

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

Callback wrapping utility

Blazing fast and accurate glob matcher written in JavaScript, with no dependencies and full support for standard and extended Bash glob features, including braces, extglobs, POSIX brackets, and regular expressions.

Promise based HTTP client for the browser and node.js

Is this specifier a node.js core module?

Tiny JavaScript tokenizer.

Additional JSON-Schema keywords for Ajv JSON validator

ECMAScript (ESTree) AST walker

Add callbacks to requests in flight to avoid async duplication

Create an array of unique values, in order, from the input arrays

Node.js 0.12 path.isAbsolute() ponyfill

Write files in an atomic fashion w/configurable ownership

Use node's fs.realpath, but fall back to the JS implementation if the native one fails

ECMAScript parsing infrastructure for multipurpose analysis

Get callsites from the V8 stack trace API

ANSI escape codes for manipulating the terminal

A smaller version of caniuse-db, with only the essentials!

ECMAScript spec abstract operations.

Slice a string with ANSI escape codes

Read a package.json file