Get methods of class in JavaScript

Question

How to get list of methods defined for a class in js?

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

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

Thanks

NullPointer · Accepted Answer · 2018-08-24 19:55:11Z

10

You can use Object.getOwnPropertyNames and filter the instance and static methods:

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);

edited Aug 24, 2018 at 19:55

answered Aug 24, 2018 at 18:55

NullPointer

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1 Comment

hyperplural Over a year ago

Great!! thx ;))

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