Contoh Lainnya untuk this

var firstName = "Peter",
    lastName = "Ally";​

function showFullName() {
    // "this" inside this function will have the value of the window object​
    // because the showFullName () function is defined in the global scope, just like the firstName and lastName​
    console.log(this.firstName + " " + this.lastName);
}​
var person = {
    firstName: "Penelope",
    lastName: "Barrymore",
    showFullName: function() {
        // "this" on the line below refers to the person object, because the showFullName function will be invoked by person object.​
        console.log(this.firstName + " " + this.lastName);
    }
}​
showFullName(); // Peter Ally​
​
// window is the object that all global variables and functions are defined on, hence:​
window.showFullName(); // Peter Ally​
​
// "this" inside the showFullName () method that is defined inside the person object still refers to the person object, hence:​
person.showFullName(); // Penelope Barrymore

Dan pada jQuery

// We have a simple object with a clickHandler method that we want to use when a button on the page is clicked​
var user = {
    data: [{
            name: "T. Woods",
            age: 37
        },
        {
            name: "P. Mickelson",
            age: 43
        }
    ],
    clickHandler: function(event) {
        var randomNum = ((Math.random() * 2 | 0) + 1) - 1; // random number between 0 and 1

        // This line is printing a random person's name and age from the data array
        console.log(this.data[randomNum].name + " " + this.data[randomNum].age);
    }
}

// The button is wrapped inside a jQuery $ wrapper, so it is now a jQuery object
// And the output will be undefined because there is no data property on the button object
$("button").click(user.clickHandler); // Cannot read property '0' of undefined

Jika kode tersebut di eksekusi, this pada console.log() akan mendapatkan properti $("button") _karena, _user.clickHandler _dipanggil oleh metode _click dari $("button"). Agar tidak terjadi kesalahan referensi, ada beberapa solusi, salah satunya adalah menggunakan bind() pada clickHandler() yaitu seperti berikut

$("button").click (user.clickHandler.bind (user)); // P. Mickelson 43