来自字符串的Javascript嵌套对象

const name = "John";
const age = 30;
const message = `My name is ${name} and I am ${age} years old.`;
console.log(message);

My name is John and I am 30 years old.

const message = `
  This is a multi-line
  string in Javascript.
`;
console.log(message);

This is a multi-line
string in Javascript.