250 Most Popular npm Packages

Returns true if a string has an extglob.

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

Fast deep equal

Encode & decode XML and HTML entities with ease & speed

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

HTTP server cookie parsing and serialization

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

Is this specifier a node.js core module?

Babel compiler core.

The Babel Traverse module maintains the overall tree state, and is responsible for replacing, removing, and adding nodes

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

Write files in an atomic fashion w/configurable ownership

Deprecate all the things

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

string representations of objects in node and the browser

Get details about the current Continuous Integration environment

babel's modular runtime helpers

Provides a list of electron-to-chromium version mappings

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

Run a function exactly one time

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

Types for the TypeScript-ESTree AST spec

option parsing and help generation

Tiny JavaScript tokenizer.

An ini encoder/decoder for node

General utilities for plugins to use

Core istanbul API for JS code coverage

Visitor keys used to help traverse the TypeScript-ESTree AST

A tiny (183B to 210B) and fast utility to ascend parent directories

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

A utility function to get the type of a value

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.

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

Callback wrapping utility

`Start a promise chain

Slice a string with ANSI escape codes

Promise based HTTP client for the browser and node.js

Light ECMAScript (JavaScript) Value Notation - human written, concise, typed, flexible

Recursive version of fs.readdir with streaming API.

Utility to parse a string bytes to bytes and vice-versa

An HTTP(s) proxy `http.Agent` implementation for HTTP

Robustly `.call.bind()` a function

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

concatenative mapdashery

JavaScript parser and stringifier for YAML

Encode/decode sourcemap mappings

Add callbacks to requests in flight to avoid async duplication

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

Generate source maps

Import a module while bypassing the cache