Bool Packages

Runtime type checking for objects using validate.js

Additional constraints for validate.js

All imaginable type checking utils with their negation

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

A tool to do boolean operation of Polygon and MultiPolygon.

Python built-ins in Javascript.

Check if a buffer/Uint8Array is an AVI file

Check if a Buffer/Uint8Array is a MOV file

Intuitive type checking functions exposed globally

Check if a value is a VFileMessage object

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

Lazy Boolean expressions

Simple React boolean hooks

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

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

Provides a simple short-hands for common comparisons

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.

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**.