JSPM

Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.

Determine the name of a value's constructor.

Determine the specification defined classification of an object.

Determine a value's type.

yet another istype detect library using `Object.prototype.toStirng` to get type.

Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc. A Typescript refactor version.

Functional utility helper library

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

The ts-is-number a utility npm package that checks if a given input is a valid finite number or a string that can be converted to a valid finite number.

Returns true if the value is a number. comprehensive tests.Study from jonschlinkert/is-number