/*! | |
* is-number <https://github.com/jonschlinkert/is-number> | |
* | |
* Copyright (c) 2014-2015, Jon Schlinkert. | |
* Licensed under the MIT License. | |
*/ | |
'use strict'; | |
var typeOf = require('kind-of'); | |
module.exports = function isNumber(num) { | |
var type = typeOf(num); | |
if (type === 'string') { | |
if (!num.trim()) return false; | |
} else if (type !== 'number') { | |
return false; | |
} | |
return (num - num + 1) >= 0; | |
}; |