Is Packages

Functions to check if a value is something alike.

Check whether a chacha20-poly1305 cipher is supported by NodeJS

Checks if internet is available using http2, node v8.4.0+ only

A Set of `is` and `isNot` functions in JavaScript checking and testing on objects and types

Strictly and correctly checks if value is a nodejs stream.

list of extensions promoted to core in WebGL2

Validates if a value is a lowercase string.

Validates if a value is an arguments object.

Validates if a value is an Int32Array.

Validates if a value is a safe integer.

Validates if a value is a Date object.

Validates if a value is a Uint16Array.

Function argument validation for humans

A simple way to ensure the correctness of the target data.

Node module & CLI to check if string is binary number

✅ check if a value is Promise-like

Determine if a value is a string

Check whether the audio file is passed

Simple way to check whether the current element matched against a selector

Checks if the given module name is in builtins.