JSFiddle - React, Tailwind, and code Playground

JavaScript

var theanswer = "1,2,3,4";
var answerarray = theanswer.split(",");
var answer = "";
alert(theanswer.length);
for (z = 0; z < theanswer.length - 1; z++) { 
	if (answerarray[z] != "," && answerarray[z] != "undefined") { 
        answer = answer + answerarray[z];
    }
}
console.log(answer);