JSFiddle - React, Tailwind, and code Playground

JavaScript

var str = "12345";

document.write('String: ' + str + '<br> Length: ' + str.length + '<br>');

while (str.length < 9)
{
    str = "\u00A0" + str;   
}

document.writeln('<br> String: ' + str + '<br> Length: ' + str.length + '<br>');