Find a file or directory by walking up parent directories

Regular expression for matching astral symbols

Turns an AST into code.

An arbitrary length integer library for Javascript

Beautiful and accessible math in all browsers. MathJax is an open-source JavaScript display engine for LaTeX, MathML, and AsciiMath notation that works in all browsers and in server-side node applications. This package includes the source code as well as

Simple key-value storage with support for multiple backends

Collection of ported legacy language modes for the CodeMirror code editor

Like a Set, but provides the index of the `key` in the backing array

easily create complex multi-column command-line-interfaces

Utilities for ESLint plugins.

HTTP content negotiation

ð Transform plugins for Metro.

Serialize JavaScript to a superset of JSON that includes regular expressions and functions.

Promisify a callback-style function

TypeScript definitions for flat

Converts a source-map from/to different formats and allows adding/changing properties.

Add callbacks to requests in flight to avoid async duplication

Flow types for the Flow-ESTree spec produced by the hermes parser

Utility functions for converting to and from URLs that encode query string data into URL paths

TypeScript definitions for pinyin

Try to guess if your terminal supports unicode

Which kind of boxed JS primitive is this?

Babel plugin to ensure function declarations at the block level are block scoped

A command line tool to easily install prebuilt binaries for multiple version of node/iojs on a specific platform