sortedListClasses

function createSortedList() {
    class NewList {
        constructor() {
            this.numbers = [];
            this.size = this.numbers.length;
        }
        add(element) {
            this.numbers.push(element);
            this.numbers.sort((a, b) => a - b);
            this.size = this.numbers.length;
        }
        remove(index) {
            if (index >= 0 && index < this.numbers.length) {
                this.numbers.splice(index, 1);
                this.numbers.sort((a, b) => a - b);
                this.size = this.numbers.length;
            }
        }
        get(index) {
            if (index >= 0 && index < this.numbers.length) {
                return this.numbers[index];
            }
        }
    }

    return new NewList();
}

let list = createSortedList();
list.add(7);
list.add(5);
list.add(6);
console.log(list.size);
console.log(list.get(1));
list.remove(1);
console.log(list.get(1));
console.log(list.size);