Strict integer parsing
npm install parse-int> Strict integer parsing. If it's not an actual integer or an integer string, return undefined.
``
$ npm install --save parse-int
`js
var parseInt = require('parse-int');
parseInt(2) // 2
parseInt('2') // 2
parseInt('2.2') // undefined
parseInt(1.2) // undefined
parseInt('2a') // undefined
parseInt() // undefined
`
#### parseInt(number) -> number / undefined
##### number
Required
Type: any`
The number to attempt to parse.
MIT © Ben Drucker