JSFiddle - React, Tailwind, and code Playground

by nipheon

JavaScript

function randomString(string_length) {
    var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";
    var randomstring = '';
    for (var i=0; i<string_length; i++) {
        var rnum = Math.floor(Math.random() * chars.length);
        randomstring += chars.substring(rnum,rnum+1);
    }
    document.randform.randomfield.value = randomstring;
}

var testString = "";

for (i = 0; i <= 30; i**) 
{ testString += randomString(4);
  testString += "-";
}

document.write(testString);