this_ex7.js

const obj = {
  prop: 'Hello',
  method: function() {
    setTimeout(() => {
       console.log(this.prop + ', World!'); // Hello, World!
    }, 2000);
  }
};

obj.method();

/* ------------------------ OR -------------------------------- */

const obj = {
  prop: 'Hello',
  method: function() {
     const inner = () => {
       console.log(this.prop + ', World!'); // Hello, World!
     }
     
     inner();
  }
};

obj.method();