If IsCallable(callbackfn) is false, throw a TypeError exception.

ECMAScript spec abstract operations.

TypeScript definitions for is-callable

A Set of Utility method for to check isArray,isNumber,isObject,isInteger,isCallable etc

Utility library for javascript type checking.

Reflection util

Get V8 function type flags (IsConstructor, IsAsyncFunction, IsGeneratorFunction). Also includes features like getting bind source, Proxy source, function renaming, etc.

TypeScript will support all proposals above stage-3. But there are always some gap between TypeScript support and proposal progress. And sometimes we want to use proposals within stage-3 (e.g. `Iterator helper`) because we may use polyfill.

A small package containing helper functions to call single or multiple functions

A method to determine if an argument is a callable function with a call method

ES helper functions from ES5 shim with no dependencies

Type check library

Types

Some utils things

Powerful package to check for variable types, values and others.

get info of objects or set exotic accessors to objects

Assertion test library.

A lightweight JS utility for advanced type detection, validation, and enforcement.

## TODO - [ ] ECMAScript proposals - [x] Finished proposals - [x] `Array` find from last - [x] Stage 3 proposals - [x] `Array` grouping - [x] Change `Array` by copy - [x] Stage 2 proposals - [x] `Iterator` helpers - [x] New `Set` metho

Assertion library.