javascript - 在类装饰器中访问此上下文

Question

我的装饰器

function vote(target) {
  target.vote = (val = '') => {
    console.log(target.name + val);
  }
}


class Cat {
  @vote
  name = 'britanik';
  meow() { return `${this.name} says Meow!`}
}
let garfield = new Cat();

garfield.vote('please .....');

但是 target.name 未定义 为什么？

Answer 1

将 target.vote 设为普通函数，它应该可以正常工作。

   function vote(target) {
  target.vote = function(val=""){
    console.log(this.name + val);
  };
}

class Cat {
  @vote name = "britanik";
  meow() {
    return `${this.name} says Meow!`;
  }
}
let garfield = new Cat();
garfield.vote("please .....");