typechecker
Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)
class-is
Enhances a JavaScript class by adding an is<Class> property to compare types between realms.
checker-as-is
Check your types at runtime with ESNext syntax by meta programing in node.js and browser with interfaces, strict object and more.
izz-class
is type shorthands for fliphub - mini package with just class