// call

​

var employee1 = { firstName: "John", lastName: "Rodson" };

var employee2 = { firstName: "Jimmy", lastName: "Baily" };

​

function invite(greeting1, greeting2) {

  console.log(

    greeting1 + " " + this.firstName + " " + this.lastName + ", " + greeting2

  );

}

​

invite.call(employee1, "Hello", "How are you?"); // Hello John Rodson, How are you?

invite.call(employee2, "Hello", "How are you?"); // Hello Jimmy Baily, How are you?

​

​

​

//apply

​

var employee1 = { firstName: "John", lastName: "Rodson" };

var employee2 = { firstName: "Jimmy", lastName: "Baily" };

​

function invite(greeting1, greeting2) {

  console.log(

    greeting1 + " " + this.firstName + " " + this.lastName + ", " + greeting2

  );

}

​

invite.apply(employee1, ["Hello", "How are you?"]); // Hello John Rodson, How are you?

invite.apply(employee2, ["Hello", "How are you?"]); // Hello Jimmy Baily, How are you?

​

​

​

//bind

​

var employee1 = { firstName: "John", lastName: "Rodson" };

var employee2 = { firstName: "Jimmy", lastName: "Baily" };

​

function invite(greeting1, greeting2) {

  console.log(

    greeting1 + " " + this.firstName + " " + this.lastName + ", " + greeting2

  );

}

​

var inviteEmployee1 = invite.bind(employee1);

var inviteEmployee2 = invite.bind(employee2);

inviteEmployee1("Hello", "How are you?"); // Hello John Rodson, How are you?

inviteEmployee2("Hello", "How are you?"); // Hello Jimmy Baily, How are you?

​