// 기존 작성법
let sayHi = (name, age) => {
console.log("Hi! My name is " + name + ". " + "I'm " + age + " years old.");
}
// 백틱을 사용하여 작성
let sayHi = (name, age) => {
console.log(`Hi! My name is ${name}. I'm ${age} years old.`);
}
sayHi("Chungsik", 28); // Hi! My name is Chungsik. I'm 28 years old.