Bool Packages

List of all javascript types. Used and useful for checking, validation, sanitizing and testing. Like isStream, isPromise, isWeakset and etc.

All imaginable type checking utils with their negation

A tool to do boolean operation of Polygon and MultiPolygon.

Python built-ins in Javascript.

Runtime type checking for objects using validate.js

Additional constraints for validate.js

Lazy Boolean expressions

Check if a buffer/Uint8Array is an AVI file

Intuitive type checking functions exposed globally

Check if a Buffer/Uint8Array is a MOV file

Check if a value is a VFileMessage object

Check if a given value is one of the ESLint severity level specifiers

Simple React boolean hooks

Set a boolean to its opposite value and then returns it.

fills a structure with randomized data to mock a service or other model provider. number of items in a collection of objects can also be random.

Provides a simple short-hands for common comparisons

A framework for defining and evaluating complex logical systems. (A cool bool rule tool.)

Convert string values to other possible value types

A boolean expression evaluator for JS

A simple React hook that encapsulates the logic around a `boolean` value with **ZERO dependencies**.