Page 156 - DCAP408_WEB_PROGRAMMING

Web Programming

Notes The number is 2
The number is 4
The number is 5
The number is 6

The number is 7
The number is 8
The number is 9
The number is 10

Explanation: The loop will break the current loop and continue with the next value when i=3.
Self Assessment

Fill in the blanks:
12. The initialization statements are executed once; only when the ………………… is
encountered.
13. The do...while loop is a variant of the …………………

5.7 JavaScript Objects

JavaScript is an Object Oriented Programming (OOP) language. An OOP language allows you to
define your own objects and make your own variable types.
However, creating your own objects will be explained later, in the Advanced JavaScript section.
We will start by looking at the built-in JavaScript objects, and how they are used. The next pages
will explain each built-in JavaScript object in detail.

Notes An object is just a special kind of data. An object has properties and methods.

Properties

Properties are the values associated with an object.
In the following example we are using the length property of the String object to return the
number of characters in a string:
<script type=”text/javascript”>
var txt=”Hello World!”;
document.write(txt.length);
</script>
Output
12

Methods

Methods are the actions that can be performed on objects.

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