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👺 weak but accurate type checking that returns a string representation of input's type

Compare dependencies in package.json to the latest available versions.

Checks if the code is minified

JavaScript Happiness Style JSX support - ESLint Shareable Config

Assert-style non-intrusive type checking.

A lightweight javascript detector and filter for profanity words / bad words written in typescript

Validates a container number according to ISO 6346

Check validity for french sécurité sociale

JavaScript Standard Style (with Flow types)

React runtime library to detect extra properties passed to components

ECMAScript feature and API detection

An opinionated code linter – a friendly companion to prettier

Check if a given value is a character that costs 4 bytes in UTF-8

Check if a given number is a code point of UTF-8 4-byte character

Detect the file type of a Buffer/Uint8Array

Create a contract of environment variables for different environments.

allows easy type enforcement for all JS types objects and classes. it is also extensible and provides simple to use type checks for your own custom classes and types

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

Manage, update and prune your dependencies like a boss.

Check whether an email address exists.