Waits for an expectation to be truthy. A small library with a convenient API suitable for unit and integration testing

Fundamental JavaScript type-related utilities

TypeScript higher-order-functions to combine or negate predicates without evaluating them.

Negation of predicate. Typed. Suitable for RxJS, Array.filter and others.

It's a mix of dependency injection and factory method. It gives you an instance of one subclasses of a class based on an optional predicate.

Bunch of stateful predicate wrappers. RxJS & Array.filter compliant.

filter an iterable sequence