var-type

var-type

Get the native type of any variable using Object.prototype.toString

Install

With npm

npm install var-type

Usage

Node.js

var varType = require('var-type')

console.log(varType('hello')) // String

// The 2nd argument will be used as a comparison test if sent
varType('foo', 'String') // true

// All additional arguments are flattened and used for comparison tests
varType(1, ['Number', 'String', 'Boolean']) // true
varType('hi', 'Function', 'Number') // false

Conversion Table

Input	Output
'meow'	String
new String('bar')	String
20	Number
new Number(10)	Number
NaN	Number
Infinity	Number
true	Boolean
new Boolean()	Boolean
/ab+c/	RegExp
new RegExp('ab+c')	RegExp
[1,2,3]	Array
new Array(4,5,6)	Array
{a: 1}	Object
new Object()	Object
function() {}	Function
new Function('a', 'b')	Function
new Date()	Date
new Error()	Error
null	Null
undefined	Undefined

See tests.