class Stack {
    constructor () {
        this.data = [];
    }

        pop()  {
        // return top most element in the stack
        // and removes it from the stack
        // Underflow if stack is empty
        if (this.data.length == 0) {
            return "Underflow";
        } else {
        return this.data.pop();
        }
    }

        top () {
          return this.data.length;
        }

        push (...element) {
            for (var i of element) {
                return this.data.push(i)
            }
        }

    // peek() method looks at the object at the top of this stack
    // without removing it from the stack.
    // The stack is not modified (it does not remove the element;
    // it only returns the element for information purposes).

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

        clear () {
            return this.data = [];
        }

        length(){
          return this.data.length;
      }

        search (value) {
            for (let i = 0; i < this.data.length; i++) {
                if (this.data[i] === value) {
                    return value;
                } else {
                    return false;
                }
            }