为什么 people[1].a 无法访问 class User 的属性？

Question

为什么人们[1].a 无法访问 class 用户的属性，但需要通过 proto 进行嵌套？！

class User {
        constructor(name, age) {
            this.name = name;
            this.age = age;
        }

        static a = 12;
    }

    class User2 extends User {}

    let people = [
        new User2('Vasia', 20),
        new User2('Peter', 19),
        new User2('Misha', 21),
    ]



    console.dir(User2.a) // 12
    console.dir(people[1].a) // ?????

Answer 1

static 属性出现在 Class 对象上。它们没有出现在 class 的 个实例 上。

它们旨在容纳静态方法。

来自MDN：

The static keyword defines a static method for a class. Static methods aren't called on instances of the class. Instead, they're called on the class itself. These are often utility functions, such as functions to create or clone objects.

为什么 people[1].a 无法访问 class User 的属性？

Why people[1].a don't have access to properties from class User?

javascript

class

prototype

proto