typeof

Get the native JavaScript type of a value, fast. Used by superstruct, micromatch and many others!

Curried property accessor function that resolves deeply-nested object properties via dot/bracket-notation string path while mitigating TypeErrors via friendly and composable API.

Is the value an object, and not an array or null?

Typeis. it's the smart and simple javaScript type checker

Is the typeof value a javascript primitive?

✔️JavaScript类型检查，弥补typeof不足

Jest matcher that allows you to test the expected type of value.

Check native type of the given value and throw TypeError if not okey. Expressive, elegant, behavior-driven API, good descriptive default error messages, simple and clean syntax.

Detects precise type of objects like `Array()`, `new Number(1)`, `new Boolean(true)`, etc

Determine the specification defined classification of an object.

Detect native Symbol.toStringTag support.

👻 only 0.25 kb. what.js is a simple library to get the type of variables. enganced typeof function.

👺 weak but accurate type checking that returns a string representation of input's type

Can be used to distinguish between these types: boolean, number, string, function, array, date, regexp, object, error.

Test if two arguments have the same type.

Test if a value is object-like.

Tiny library for determining the type. Can detect custom types.

Determine the name of a value's constructor.

Test if two arguments have the same native class.

This repository includes all basics of JavaScript . It is a perfect option for beginners and those want to refresh their knowledge. This repo includes practical examples so far, and the comments explains everything from A-Z.