jQuery Ajax Training
If you want to build a website or web application, interactive elements are a necessity. An interactive web application is a step closer to success. But how do you add these interactive elements? Well, there’s jQuery for that.
This comprehensive online course covers jQuery and Ajax in detail, both of which we’ll discuss in detail later below. The tutorials cover simple Ajax descriptions, DOM element setup method, global Ajax event method, low level interface and much more.
An introduction to Ajax
Although Ajax makes the end-user’s experience simpler, it can be cumbersome to use from the developer’s end. This is because different browsers have their own implementations for supporting Ajax. Now, this would normally mean that you write code for different responses to different browsers. But that is where jQuery comes into the picture. It simplifies all of this, allowing developers to write Ajax functionality with far fewer lines of code than it would otherwise require. In some cases, you may need just a single line of code!
In this day and age where responsiveness is essential to the end-user experience, Ajax is getting increasingly integral for a successful website. It is already in use extensively by some major websites mentioned below, for good reason. It offers greater interactivity to the user, because with Ajax, you as a user do not have to refresh or reload a page to view dynamic content. This makes Ajax a rather tempting element to include in your web development, but you need to be fully aware of its advantages and disadvantages before you go through this course and start implementing it:
Advantages of Ajax
- Greater interactivity:
One of the biggest benefits of Ajax is the greater interactivity you get it from, and it is the key reason why a lot of webmasters and developers are switching to the technique. Ajax makes the user interaction easier and quicker, since pages don’t have to be reloaded for displaying dynamic content. This is the core concept behind a lot of sites you see today, especially in social media with its infinite scroll of content.
Along with an improved user experience, Ajax could also help save bandwidth for the end user and the developer, since you only load the data needed to update the page rather than refreshing the complete page.
- Easier navigation:
With Ajax, you can build applications to enable easier navigation across your website, as compared to the conventional Forward and Back button on a web browser.
- Compact nature:
- Strong reputation:
Ajax is wildly popular, and if you want proof of that, look up Google Maps. Not an address, but the service itself. It is one of the first and most impressive examples of Ajax handling a complex web application. The popular vBulletin forum software, which is found in so many sites even today, also incorporates Ajax in its latest version.
So it is clear that Ajax is easy to use, good for the user, popular among the big players and in trend these days. But it is far from perfect. It’s important to be aware of the disadvantages of this concept too before you go ahead and decide to implement it on your web project.
Disadvantages of Ajax
- Lack of conventional browsing options
Section 1: Ajax and jQuery
The section begins with an introduction to Ajax, starting with a description of the concept and technique. It goes on to discuss examples on the simple methods that can be implemented with Ajax.
1 Simple Ajax Description Part 1
2 Simple Ajax Description Part 2
3 Simple Methods Example Part 1
4 Simple Methods Example Part 2
5 Simple Methods Example Part 3
6 Simple Methods Example Part
Section 2: Global Ajax Event Method
After a quick introduction to Ajax and some simple method examples, we move on to global Ajax event methods, which register handlers to be called in case certain events like completion or initialization, take place on a page.
7 Global Ajax Event Method Description
8 Global Ajax Event Method Examples
Section 3: Helper Functions
This next section focuses on Helper functions, which help with common idioms that are encountered when Ajax tasks are performed. There are three such functions that are described with examples in this section.
9 Helper Functions Description
10 Helper Functions Example
Section 4: Low Level Interface
The methods under this can be used for making arbitrary Ajax requests. The low-level interface makes this possible, or to configure jQuery for future requests. There are four methods under this interface that are described in this section.
11 Low Level Interface Description
12 Low Level Interface Examples
Section 5: Collection Manipulation Data Storage
Now we move to more advanced levels of jQuery and Ajax, with collection manipulation data storage. There are two methods of collection manipulation to iterate over an object or create a serialized representation of an object for an Ajax request or URL query string.
13 Collection Manipulation Data Storage Description
14 Collection Manipulation Data Storage Example Part 1
15 Collection Manipulation Data Storage Example Part 2
Section 6: DOM Element Setup Method
In this section, we cover the DOM element methods, including retrieving the DOM elements that are matched by the jQuery object, searching a given element among matched elements, returing the elements in the object and more.
16 DOM Element Setup Method Description
17 DOM Element Setup Method Example Part 1
18 DOM Element Setup Method Example Part 2
Section 7: Jquery Conclusion
The section concludes the course, providing more insight on Ajax and jQuery to make your development process easier and to set you on the course for more learning.
19 Jquery Conclusion
While the course is designed to be as accessible as possible, you will find it a lot easier to follow and implement what you learnt from the course right off the bat if you meet the following prerequisites:
- You are familiar with HTML, CSS, XML or some other web development language
- You have prior coding or programing experience of some kind
TARGET AUDIENCE FOR THIS TRAINING
The course is designed for the following target audience:
- Students and professionals interested in learning about Ajax and jQuery from a hands-on perspective.
FAQs – GENERAL QUESTIONS
- Is this course for me?
- Is there a particular order to follow?
Depending on how much experience you have with Ajax and jQuery, and how well you pick up new coding techniques, you may follow the order or just go through the sections that you are interested in. You have full autonomy here, although it is best to go through the whole course from the first to final section. You get the entire experience this way, and learn much better.
- Where would I apply this?
As indicated clearly in the introduction to this course, Ajax is pretty important in modern web development. Everyone wants responsive design that delivers a good user experience across various devices. In fact, user experience is absolutely paramount these days. If you want to ensure that your users get a simplified experience, Ajax is one of the best ways to do it.
I have been practicing web development for close to a year now, and felt that my skills were starting to fall behind the current industry standard. I needed to brush them up, so turned to this course to teach me a thing or two about Ajax. And boy, did it deliver! The course gave me everything I needed to venture into Ajax on my own. Crisp, concise and clear!