typeof number, or use a default
npm install as-number
Tiny function that returns the given number, or a default value if typeof !== 'number'. If no default is given, returns 0.
``js
var number = require('as-number')
var num = number(arg0, 25) //default to 25
var num2 = number(arg1) //default to zero
`

#### number(value[, default])
If value is typeof === 'number', then it simply returns value unchanged. Otherwise, it will return default` if it is also a number, or zero.
MIT, see LICENSE.md for details.