Javascript_DS/single.html at main · Thellexcodes/Javascript_DS · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        class Stack {
            constructor() {
                this.items = [];
            }

            push(element) {
                this.items.push(element);
            }

            pop() {
                if (this.items.length === 0) return "Underflow";
                return this.items.pop();
            }

            peek() {
                return this.items[this.items.length - 1];
            }
        }

        let stack = new Stack();
        stack.push(10);
        stack.push(20);
        console.log(stack.peek());

    </script>
</body>

</html>