ES2015 对象的扩展

property shorthand & short methods

示例：

//Object shorthand

function getPerson() {
    let name = 'John';
    let age = 25;

    // return {
    //  "name": name,
    //  "age": age,
    //  "greet": function() {
    //      return 'Hello ' + name;
    //  }
    // }

    return {
        name,
        age,
        greet() {
            return `Hello ${name}`;
        }
    }
}

console.log(getPerson().greet());

object destructuring

示例：

//Object destructuring
let data = {
    name: 'John',
    age: 18
}

let { name } = data;

console.log(name);


//Another Object destructing
function greet({name, age}) {
    console.log(`Hello, ${name}. You are ${age}`);
}

greet({
    name: 'Luke',
    age: 24
});