over-ride a method in extended class in node js and access variable

Question

How can I access parent prototype variable 'id' in child prototype.

const util = require('util');

const Parent = function () {};

Parent.prototype.access = function() {
    var id = 1;
};

const Child = function () {};

util.inherits(Child, Parent);

child.prototype.access = function() {
    //access Parent.prototype.access variable 'id' here
}

Any Thoughts??

Answer 1

You can do this using JS Classes.

class Parent {
  constructor(id) {
    this.id = id;
  }

  access() {
    this.id = 1;
    console.log('Parent access');
  }
}

class Child extends Parent {
  access() {
    console.log(`Child access: ${this.id}`);
  }
}

const d = new Child(5);
d.access(); // Child access: 5