对象字面量的扩展

对象属性名，方法名的简写方式

const name = 'laravel';
const age = 2;
const birthday = '2015-09';
const laravel = {
    name,
    age,
    birthday,
    greet() {
        console.log('Hello!');
    }
}
console.log(laravel);

计算属性

let id = 0;
const userIds = {
    [`user-${++id}`]: id,
    [`user-${++id}`]: id,
}
console.log(userIds);

const keys = ['name', 'age', 'birthday'];
const values = ['Laravel', 2, '2015-09'];
const laravel = {
    [keys.shift()]: values.shift(),
    [keys.shift()]: values.shift(),
    [keys.shift()]: values.shift(),
}
console.log(laravel);