CHECK Packages

Check unused dependencies.

Check for a valid Number value.

A straightforward implementation of base58-check encoding

A module to check whether a JavaScript value is of a certain type

Check if current running context is PhantomJS.

Authorization plumbing for Node+Express apps

A react native module to find the app version on play store and ios app store

Check if a url is an image using HTTP HEAD

Check if the user is running the latest version of the app

Checks if the given value is a valid array-like index.

Validates given IPs (IPv4 and IPv6) using [micromatch][] - glob patterns, RegExp, string or array of globs. If match returns the IP, otherwise null.

JavaScript Standard Style JSDoc support - ESLint Shareable Config

Get / Check the document readyState by Promise, when the DOM and Window is loaded

Check if a number is in a given range

Checks if a given object is iterable

Check if version of a NPM module exists

Takes a file path and checks to see if the modules it requires match the package.json

ESLint shareable config for the 6RS style

Check if a Buffer/Uint8Array is a MP3 file.

Check if a string is a valid E. 164 phone number