Easily handle defaults for your options

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

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

Check if a value is a `Blob`

Merge objects & other types recursively. A simple & small integration.

Traverse JSON Schema passing each schema object to callback

Call a specified method on each value in the given object.

An optimised way to copy'ing an object. A small and simple integration

Parse HTTP Content-Type header according to RFC 9110

Determine if an object is a Buffer

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

Check if a URL is absolute

Convert object keys from camel case

ES2015 `Object.assign()` ponyfill

extend like a boss

Check if stdout or stderr is interactive

Infer the content-type of a request.

Get the first path that exists on disk of multiple paths

Check if a string is SVG

TypeScript with some extras for type-checking.