JSFiddle - React, Tailwind, and code Playground

by Brock Callahan

HTML

<id id="output"></id>

JavaScript

function sumAll(arr) {
  var newArray = [];
  var addedArray = [];
    
  for(i=arr[0]; i<=arr[1]; i++) {
    newArray.push(i);
  }
  return newArray.reduce(function(x,y){
  	return x+y;
  }, 0);
    
}

writeIt("output",sumAll([4,10]));

function writeIt(id,text) {
	document.getElementById(id).innerHTML=text;
}