JSFiddle - React, Tailwind, and code Playground

JavaScript

function Thing(params) {
    var that = this;

    this.OtherObject = function OtherObject(param) {
        this.param = param;
    }

    this.Foo = function Foo() {
        this.bar = [];

        this.add = function(item) {
            if (this.bar.length != 0) {
                for (var i = 0, len = this.bar.length; i < len; i++) {
                    if (this.bar[i].param <= item.param) {
                        this.bar.splice(i, 0, item);
                    }
                }
            } else {
                this.bar[0] = item;
                console.log(this.bar);
            }
        }

        this.pop = function() {
            return this.bar.pop();
        }

        this.length = function() {
            return this.bar.length;
        }
    }

    this.someFunc = function() {
        var myThing = new that.Foo();
        myThing.add(new that.OtherObject(3));

        while (myThing.length() > 0) {
            var someVar = myThing.pop();
        }
    }
}

var myThing = new Thing({
    myParam: "someValue"
});

myThing.someFunc();