250 Most Popular npm Packages

Returns true if an object was created by the `Object` constructor, or Object.create(null).

A small polyfill for Object.setprototypeof

TypeScript scope analyser for ESLint

ECMAScript (ESTree) AST walker

utility box for ECMAScript language tools

Syntax highlight JavaScript strings for output in terminals.

ECMAScript parsing infrastructure for multipurpose analysis

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

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

The Node.js `util.deprecate()` function with browser support

Encode a URL to a percent-encoded form, excluding already-encoded sequences

Get callsites from the V8 stack trace API

A JavaScript text diff implementation.

Babel helper functions for inserting module loads

Buffers events from a stream until you are ready to handle them.

Modern Buffer API polyfill without footguns

A stream that emits multiple other streams one after another.

Node.js 0.12 path.isAbsolute() ponyfill

Additional JSON-Schema keywords for Ajv JSON validator

Tiny queue data structure

Toggle the CLI cursor

Gracefully restore the CLI cursor on exit

Reactive Extensions for modern JavaScript

utils for webpack loaders

Strip the final newline character from a string or Uint8Array

Minimal async jobs utility library, with streams support

An Esprima-compatible JavaScript parser built on Acorn

[](https://travis-ci.org/stefanpenner/get-caller-file) [](https://ci.a

List of binary file extensions

Babel helper functions for implementing ES6 module transformations

Node.js releases data

Collection of helper functions used by Babel transforms.

RFC6265 Cookies and Cookie Jar for node.js

Normalizes data that can be found in package.json files.

Read/write IEEE754 floating point numbers from/to a Buffer or array-like object

Does the environment have full property descriptor support? Handles IE 8's broken defineProperty/gOPD.

Indent each line in a string

ES2015 `Object.assign()` ponyfill

An RFC 3986/3987 compliant, scheme extendable URI/IRI parsing/validating/resolving library for JavaScript.

HTML parser and serializer.

Check if a value is a plain object

Resolve a URI relative to an optional base URI

An AST-based pattern checker for JavaScript.

Node.js path.parse() ponyfill

HTTP and HTTPS modules that follow redirects.

Store information about any JS value in a side channel. Uses WeakMap if available.

Helper functions on Babel compilation targets

A stand-alone types package for Undici

Recursively iterates over specified directory, require()'ing each file, and returning a nested hash structure containing those modules.