Remap sequential sourcemaps through transformations to point at the original source code

Strip ANSI escape codes from a string

Define multiple non-enumerable properties at once. Uses `Object.defineProperty` when available; falls back to standard assignment in older engines.

JSONSchema Type Builder with Static Type Resolution for TypeScript

C++ language support for the CodeMirror code editor

TypeScript definitions for serve-static

<sup> tag for markdown-it markdown parser.

Compile ES2015 classes to ES5

Execute a listener when a response is about to write headers

Is this value a JS ArrayBuffer?

Find a file or directory by walking up parent directories

This is a polyfill for Buffer#indexOf introduced in NodeJS 4.0.

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

TypeScript definitions for semver

ECMAScript JS AST traversal functions

rawStream.pipe(JSONStream.parse()).pipe(streamOfObjects)

Parse JSON with more helpful errors

Match balanced character pairs, like "" and ""

The lodash method `_.debounce` exported as a module.

a CSS selector parser

Is this value a JS SharedArrayBuffer?

The semantic version parser used by npm.

Thunk middleware for Redux.

Language support infrastructure for the CodeMirror code editor