typeof

Validate infrastructure as code (IaC) and objects using PowerShell rules.

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?

TypeScript typeof utility helper with no dependencies.

✍🏿Get the exact type of a value

✔️JavaScript类型检查，弥补typeof不足

Simple functionality alternative to check data type references such as typeof and instanceof.

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

Determine the specification defined classification of an object.

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

👻 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

Detect native Symbol.toStringTag support.

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

Get the type of every parameter

Test if two arguments have the same type.