Method push

javascript/08_stack/StackBasedOnLinkedList.js:18–26

(value)

        this.top = null
    }
    push(value) {
        const node = new Node(value)
        if (this.top === null) {
            this.top = node
        } else {
            node.next = this.top
            this.top = node
        }
    }
    pop() {
        if (this.top === null) {
            return -1