A little library for asserting types and values.
Large collection of predicates.
A little library for asserting types and values. Follower for check-types (archived).
Uncouple constructors and classes methods into functions.
Check for what you need. Mainly for framework developers
Tiny tiny duck typing utility
Interfaces for duck typing approach
A better alternative to the typeof-operator in JS. Utilizes the internal [[CLASS]] property.