TypeOf Packages

object or array with nesting → collection containing all primitive value types and corresponding nest depths

Type creation, validation, and comparison for Javascript

Check if a value is a number, including every 'number' type

The util module is improve more methods to check type and some assist methods for nodeJs

collection of all 'x-is-...' to test types of values

A very simple "typeof" detection

is type shorthands for fliphub - mini package with just class

The way typeof should be

The fastest JavaScript type checker for V8

An improved `typeof` handler.

xtypejs Camel name scheme

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

You can get the real type of values (i.e. array, null, object, map, set, etc.)

enhance javascript typeof

Upgraded version of: typeof in JavaScript, to better identify & separate similar results.

JavaScript all types detection module (crossbrowser)

Like typeof, but not awful.

A very simple "typeof" detection

A robust micro library for type checking. Defers to constructs' internal `[[Class]]` property rather than duck typing for excellent type detection and to avoid triggering false positives.

A native module for effectively validating if a value is type Number.