250 Most Popular npm Packages

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

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

the bare-bones internationalization library used by yargs

Get your PATH prepended with locally installed binaries

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

TypeScript definitions for yargs

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

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

Lodash modular utilities.

Node.js Buffer API, for the browser

User-friendly glob matching

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

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

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

Make a function mimic another one

Parse JSON with more helpful errors

A comprehensive library for mime-type mapping

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

JSDoc parser

Trace the original position through a source map

Media Type Database

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.

TypeScript is a language for application scale JavaScript development

Minimal module to check if a file is executable.

Easily read/write JSON files.

A JavaScript parser

Runtime for Regenerator-compiled generator and async functions.

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

Human-friendly process signals

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

Turns an AST into code.

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

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.

Validate identifier/keywords name

This packages is a collection of utilities and helper functions

Higher-order functions and common patterns for asynchronous code

Implementation of Function.prototype.bind

Find and load configuration from a package.json property, rc file, TypeScript module, and more!

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

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

The ultimate javascript content-type utility.

HTTP status utility

Minimal and efficient cross-platform file watching library

Express style path to RegExp utility

Fixes stack traces for files with source maps

JavaScript sprintf implementation

ANSI escape codes for manipulating the terminal

Generate an AST from a string template.

Create HTTP error objects

Determines if an object can be used as an array