对象字面量语法扩展

let title="VUE"
let price=80
let book={title,price}
console.log(book)

对象方法的简写

let person={
    say(){
        console.log("say方法")
    }
}

person.say()

计算属性名，属性名出线：-或中文，需要用[]

let ageAttr='age'
let person={
    ['first-name']:"四",
    ['last-name']:"李",
    [ageAttr]:20
}

console.log(person)