CHECK Packages

Check if the process is running as administrator on Windows

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

Check if a JavaScript environment has a DOM

Check if a String/Buffer is TTF

Check if a String/Buffer/ArrayBuffer is OTF

Check if node_modules match package.json versions. npm / yarn install shortcut.

Delete files and folders and any intermediate directories if they exist (sync and async).

Robustly checks an array of URLs for liveness.

Set of various predicates for type checking, assertions, filtering etc

Check if the process is running with elevated privileges

Convert Ethereum address to a checksummed address

Report tests failures from Jest in GitHub

Check if an object is an array or a typed array

Second generation object or request validator for node.js

Checks for URLs during typing and pasting and automatically converts them to links.

Check types

A tool to enable the checking, inserting and removal of licenses

Validates if a value is a JavaScript object.

check if an AST node is a call to require()

check if an AST node is a call to require()