JSFiddle - React, Tailwind, and code Playground

by Dmitry Morar

JavaScript

function cat(arr) {
let sum = 0;
arr.forEach(function(item, i) {
	if ((i + 1) % 2 === 0) {
  sum += item;
  
  }

})
alert(sum)
}

cat([3,5,2,7,14,6,4,8,19,4])