JSPM

Returns true if the given is falsey (according to JavaScript) or matches a 'falsey' keyword.

Casts the given value to a flatten array, and removes falsey items (similar to lodash compact).

returns a copy of an array with falsey values removed

Determines if something should be considered a synonym for true

Trim empty, nullish, or falsey keys from your JSON object

Convert numerous value types to booleans

FalseJS

A lightweight utility library for Boolean evaluations, semantic string parsing, comparisons, and predicate utilities.

The future is here.

Test if a value is falsy.

Tests a value’s type against a string like 'positive integer' or 'non-empty map'.

Test if a value is an array-like object containing only falsy values.

Test if a value is truthy.

Falsy helper functions and types for TypeScript.

A robust, scalable, framework-agnostic solution for mathemetical even/odd checking in distributed systems. Battle-tested in production.

Test if a value is an array-like object containing only truthy values.

Javascript library for testing truthiness of anything. Coerce string booleans into true booleans. Truthyness is not the same as equality!