在 JavaScript 中获取类的方法

Question

如何获取为 js 中的类定义的方法列表？

class c {
  methodA(){}
  static methodB(){}

  log(){console.log(/*methods*/);}
  static logStatic(){console.log(/*static methods*/)}
}

谢谢

Answer 1

您可以使用Object.getOwnPropertyNames 和过滤instance和static方法：

class c {
  methodA(){}
  static methodB(){}

  log(){console.log(/*methods*/);}
  static logStatic(){console.log(/*static methods*/)}
}
const instanceOnly = Object.getOwnPropertyNames(c.prototype)
    .filter(prop => prop != "constructor");
console.log(instanceOnly);
const staticOnly = Object.getOwnPropertyNames(c)
    .filter(prop => typeof c[prop] === "function");
console.log(staticOnly);