Room 51

Get Programming with JavaScript - Listing 3.03

Listing 3.03 - A book as an object


var book;

book = {
    title : "The Hobbit",
    author : "J. R. R. Tolkien",
    published : 1937
};

console.log(book);

Further Adventures

Listing 3.03 - A book as an object - Task 1

Change the title of book to "The Hobbit, or There and Back Again".


var book;

book = {
    title : "The Hobbit, or There and Back Again",    // update title
    author : "J. R. R. Tolkien",
    published : 1937
};

console.log(book);

Listing 3.03 - A book as an object - Task 2

Try creating a book2 object.


var book;
var book2;    // declare a new variable

book = {
    title : "The Hobbit, or There and Back Again",
    author : "J. R. R. Tolkien",
    published : 1937
};

// assign a new book to the variable
book2 = {
    title : "Northern Lights",
    author : "Philip Pullman",
    published : 1995
};

console.log(book);

Listing 3.03 - A book as an object - Task 3

Log book2 to the console.


var book;
var book2;

book = {
    title : "The Hobbit, or There and Back Again",
    author : "J. R. R. Tolkien",
    published : 1937
};

book2 = {
    title : "Northern Lights",
    author : "Philip Pullman",
    published : 1995
};

console.log(book);
console.log(book2);    // log the new book