JSFiddle - React, Tailwind, and code Playground

by rigids

JavaScript

function merge(one, two){
	  var output = "";
	  for (var i = 0; i < Math.min(one.length, two.length); i++) {
		output += one[i] + two[i];
	  }
	  alert(output);
	  return output;
	}
	merge("abc", "123")