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