Question

How to use this with multiple classes in JavaScript

Answer 1

class A {
  f() {
    console.log(this.name);
  }
  get name() {
    return 'class A';
  }
}

class B {
  get name() {
    return 'class B';
  }
}


const oa = new A();
oa.f(); 


const ob = new B();
ob.f = oa.f;
ob.f(); 





/*
run:

"class A"
"class B"

*/

 

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Answer 2

class A {
  constructor() {
    this.f = this.f.bind(this);
  }
  f() {
    console.log(this.name);
  }
  get name() {
    return 'class A';
  }
}

class B {
  get name() {
    return 'class B';
  }
}


const oa = new A();
oa.f(); 


const ob = new B();
ob.f = oa.f;
ob.f(); 





/*
run:

"class A"
"class A"

*/

 

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