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Getting Started with PhantomJS

You're reading from   Getting Started with PhantomJS Harness the strength and capabilities of PhantomJS to interact with the web and perform website testing with a headless browser based on WebKit

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Product type Paperback
Published in Nov 2013
Publisher Packt
ISBN-13 9781782164227
Length 140 pages
Edition 1st Edition
Languages
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Aries beltran Aries beltran
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Table of Contents (13) Chapters Close

Preface 1. Getting Started 2. Manipulating Page Content FREE CHAPTER 3. Handling Events and Callbacks 4. Capturing Errors 5. Grabbing Pages 6. Accessing Location-based Services 7. Working with Files 8. Cookies 9. External JavaScript 10. Testing with PhantomJS 11. Maximizing PhantomJS Index

Using the object-oriented modules

What if we want to use our module as an object with a specific type similar to a class? We can also do this with PhantomJS. Instead of using exports, we use module.exports. So what is the difference between the two? Exports are like a typical module instance that can be directly accessed like an instantiated object, but the latter is a blueprint or class that we can instantiate, and has a specific object type and properties.

Tip

Learn more about CommonJS and its concepts by checking out the CommonJS wiki page at http://wiki.commonjs.org/.

So how do we create module.exports? Let's try one example and build it up as we progress.

First, we create our module. Let's model a person as our object and name our module as person.js.

module.exports = function() {
};

The code above represents a module, although it doesn't give any value. Instead of using exports, we define our function with module.exports. Actually, the function definition is our object constructor...

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