250 Most Popular Javascript Packages

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

Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.

Returns true if a value has the characteristics of a valid JavaScript data descriptor.

Normalize slashes in a file path to be posix/unix-like forward slashes. Also condenses repeat slashes to a single slash and removes and trailing slashes, unless disabled.

An implementation of the Unicode UTS #46: Unicode IDNA Compatibility Processing

Stringify any JavaScript value.

CLI arguments parser. Native port of python's argparse.

Higher-order functions and common patterns for asynchronous code

Returns true if the value is an object and not an array or null.

Ignore is a manager and filter for .gitignore rules, the one used by eslint, gitbook and many others.

Check if a path is a file, directory, or symlink

Media Type Database

Strip UTF-8 byte order mark (BOM) from a string

`Start a promise chain

Easily read/write JSON files.

Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.

ECMAScript scope analyzer for ESLint

A JavaScript parser

The ultimate javascript content-type utility.

The tiniest and the fastest library for terminal output formatting with ANSI colors

Matches strings against configurable strings, globs, regular expressions, and/or functions

A drop-in replacement for fs, making various improvements.

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

General utilities for plugins to use

Lodash modular utilities.

Get your PATH prepended with locally installed binaries

Minimal and efficient cross-platform file watching library

Node.js Buffer API, for the browser

Turns an AST into code.

Strip comments from JSON. Lets you use comments in your JSON files!

Deprecate all the things

Validate identifier/keywords name

babel's modular runtime helpers

Babel compiler core.

Match balanced character pairs, like "{" and "}"

Make a function mimic another one

Module for executing heavy tasks under forked processes in parallel, by providing a `Promise` based interface, minimum overhead, and bound workers.

JSDoc parser

A small polyfill for Object.setprototypeof

Ensure a function is only called once

Syntax highlight JavaScript strings for output in terminals.

HTTP status utility

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

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

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

Reactive Extensions for modern JavaScript

Standard library

Recursive version of fs.readdir with streaming API.

Express style path to RegExp utility