Recursion tutorial

by Laurens Marcelis

HTML

<div class="count">

</div>
<div class="instructions">
</div>

JavaScript

let theArray = [10,2,8,3,1];
let counter = document.querySelector(".count");
var sum = 0;
counter.innerHTML = arraySum(theArray);

function arraySum(arr) {
	
	//we start with an empty sum
  if(arr.length>=1){
  	sum += parseInt(arr.splice(-1,1));
  	arraySum(arr);
  }
  return sum;
}