Double click remove array

Double click remove array

by Sulthan Allaudeen

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
<button id='1' class='add'>1</button>
<button id='2' class='add'>2</button>
<button id='3' class='add'>3</button>
<button id='4' class='add'>4</button>
<div>

</div>

JavaScript

var array = [];
$(".add").click(function(){
		var id = parseInt(this.id);
    if(array.includes(id)){
    var index = array.indexOf(id);
    //console.log('ind',index);
    //array.slice(index)
    array = _.without(array, _.findWhere(array, index));
    } else {
    array.push(id);
    }
    console.log(array);
  });