type-check allows you to check the types of JavaScript values at runtime with a Haskell like type syntax.

Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.

A simple Node.js module to check if a TCP port is already bound.

Native Access to MacOS FSEvents

A little library for asserting types and values, with zero dependencies.

Runtime library to validate data against TypeScript interfaces

Check if stdout or stderr is interactive

Check if a local or remote port is reachable

A parser for the TypeScript doc comment syntax

A simple lib to check number equals 12

Reads / writes floats / doubles from / to buffers in both modern and ancient browsers.

A minimal base64 implementation for number arrays.

Inquirer number prompt

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

Get the first path that exists on disk of multiple paths

Rope-based persistent sequence type

a CSS selector compiler/engine

Checks whether provided parameter looks like a number

Deterministic and safely JSON.stringify to quickly serialize JavaScript objects

High Performance In-Memory Cache for Node.js