var square = x => x * x;
console.log(square(9));

var user = {
  name: "Tyrel",
  sayHi: () => {
    console.log(arguments);
    console.log(`Hi I'm ${this.name}.`);
  },
  sayHiAlt () {
    console.log(arguments);
    console.log(`Hi I'm ${this.name}.`);
  }
}

user.sayHi(1,2,3);
user.sayHiAlt(1,2,3);