B322/individual/fullstack/s64/stack.html

<script>
    let collection = [];

    function addToStack(element) {
        collection.push(element);
        return collection;
    }

    function removeFromStack() {
        collection.pop();
        return collection;
    }

    function peek() {
        return collection[collection.length-1];
    }

    function getLength() {
        return collection.length;
    }
</script>