JSFiddle - React, Tailwind, and code Playground

by michapixel

JavaScript

var times = 4;
var cnt = 0;
function stringRepeat(pattern, count) {
    if (count < 1) return '';
    var result = '';
    while (count > 0) {
        if (count & 1) result += pattern;
        count >>= 1, pattern += pattern;
    }
    return result;
}
var pad = stringRepeat('0', times);


for(var i = 0; i < 1000; i++) {
    console.log( String(pad+(cnt++)).slice(-times));
}