JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://getfirebug.com/firebug-lite-debug.js"></script>

JavaScript

var object = {
    "1111": "value1111",
    "300": "value300",
    "2": "value2",
    "4": "value4"
}

var keys = Object.keys(object).sort(function(a, b) {return a - b;});
for (var index = 0; index < keys.length; index++) {
    var key = keys[index];
    var value = object[key];

    console.log(key + ': ' +  value);    
}