JSFiddle - React, Tailwind, and code Playground

by Brian Layman

JavaScript

var list = [1,2,3,4];

for (var x = 0, ln = list.length; x < ln; x++) {
  setTimeout(function(y) {    
    echo("%d => %d", y, list[y] += 10);
  }, x * 500, x); // we're passing x
}