1.0.1 • Published 7 years ago
var-type v1.0.1
var-type
Get the native type of any variable using Object.prototype.toString
Install
With npm
npm install var-typeUsage
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') // falseConversion 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.