Typeof Packages

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

Type check library

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

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

JavaScript all types detection module (crossbrowser)

The way typeof should be

The fastest JavaScript type checker for V8

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.

An improved `typeof` handler.

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.