01前端/JS - 严格模式

  • 更新时间：2020-05-09 03:53
  • 创建时间：2020-05-09 03:53

class 中的代码总是在严格模式下执行。

1
2
3
4
5
6
7
8
9
class C4 {
  constructor() {
    //Uncaught TypeError: Cannot set property foo of #<C4> which has only a getter
    this.foo = "test";
  }
  get foo() {}
}

let obj3 = new C4();
1
2
3
4
5
6
7
8
9
10
11
12
class C1 {
  constructor() {
    // Uncaught TypeError: Cannot set property foo of #<C2> which has only a getter
    this.foo = "test";
  }
}

class C2 extends C1 {
  get foo() {}
}

let obj = new C2();