typeiss.js
It can check all data types.
| Value | typeiss.js |
|---|---|
| Undeclared variables | Undefined |
| undefined | Undefined |
| Boolean | Boolean |
| Number | Number |
| String | String |
| Function | Function |
| Array | Array |
| Object | Object |
| Date | Date |
| RegExp | RegExp |
| Set | Set |
| Map | Map |
Installation
npm install typeiss
Usage
In ES6:
import { typeiss } from 'typeiss'
In Node.js:
const a = require('typeiss')
In a browser:
<script src="typeis.js"></script>
Examples
// return variable type
typeiss(undefined) //return Undefined
typeiss(true) //return Boolean
typeiss('string') //return String
···
// return the variable type is or not in an array
typeiss(undefined, ['Undefined']) //return true
typeiss(true, ['Boolean','Array']) //return true
typeiss(true, ['Array']) //return false
typeiss('string', ['String','Boolean','Array']) //return true
typeiss('string', ['Boolean','Array']) //return false