"use strict";
const user = {
  name: "Bob",
  funcFunc() {
    return function () {
      console.log(this);
    };
  },
  funcArrow() {
    return () => {
      console.log(this);
    };
  },
  arrowFunc: () => {
    return function () {
      console.log(this);
    };
  },
  arrowArrow: () => {
    return () => {
      console.log(this);
    };
  },
};
 
const user2 = {
  name: "Jim",
  funcFunc: user.funcFunc(),
  funcArrow: user.funcArrow(),
  arrowFunc: user.arrowFunc(),
  arrowArrow: user.arrowArrow(),
};
 
user2.funcFunc(); //
user2.funcArrow(); //
user2.arrowFunc(); //
user2.arrowArrow(); //

"use strict";
const user = {
  name: "Bob",
  funcFunc() {
    return function () {
      console.log(this);
    };
  },
  funcArrow() {
    return () => {
      console.log(this);
    };
  },
  arrowFunc: () => {
    return function () {
      console.log(this);
    };
  },
  arrowArrow: () => {
    return () => {
      console.log(this);
    };
  },
};
 
user.funcFunc()(); // undefined
user.funcArrow()(); // user {}
user.arrowFunc()(); //  undefined
user.arrowArrow()(); // undefined
 
const user2 = {
  name: "Jim",
  funcFunc: user.funcFunc(),
  funcArrow: user.funcArrow(),
  arrowFunc: user.arrowFunc(),
  arrowArrow: user.arrowArrow(),
};
 
user2.funcFunc(); // user2{}
user2.funcArrow(); // user {}
user2.arrowFunc(); // user2 {}
user2.arrowArrow(); // window