thanhnguyennguyen / cff

    // put your code here to address problems

    constructor() {

        this.data = [];

    }

    push(record) {

        this.data.push(record);

    }

        return this.data[this.data.length - 1];

    }

    isEmpty() {

        return this.data.length === 0

    }

}

module.exports = Stack;