jQuery for beginners

If there’s something you can do with lightweight libraries, it has to be jQuery. One of the main reasons I am inclined to learn jQuery is its simplicity. I remember the problem I faced with folder visibility Javascript that I had developed to control visibility of folders on a user click. As we all know, Javascript would not work unless entire body is loaded, it was tagged as a major bug from business requirement. This is what jQuery overcomes.

What made me to start writing posts on JQuery is to make life easy for people like you and me who wants to learn it. It is very important to know dependencies before we invest time and efforts. This post is to list out dependencies & must know points about jQuery.

jQuery library is referred either by .js file present in your project folder or by using CDN (Code Developer Network). If your application is designed for offline mode, better we refer to .js file. But if it’s online, better we use CDN for delivering us the most recent version of library.

jQuery version is specified by path elements (1.5.1). If you want CDN to return latest version in 1.5 series, you can only use 1.5. If you want latest version in 1.0 series, simple use (1).

How and when jQuery libraries updated?

There are two types of jQuery builds available. One which happens every night is called as Nightly build jQuery libraries. The other build which makes update available to you the moment it’s released by developer is called as Subversion.

Which type of jQuery libary I should download?

If you’re a learner, better use uncompressed version of jQuery. It is a full version of jQuery functions which you can read and interpret easily. However when you’re going to transport the jQuery code to the production, it’s better to use compressed version. Reason? Compressed version would save a lot of bandwidth as it’s a shorter/compressed version of jQuery library.

I can see $ sign every where, what’s it?

$ is a short name for function jQuery. Yes, “jQuery” the word itself is a main function and you can access each function available in the jQuery library with this function. You’ve option of usingjQuery or $ sign.  

SAP Netweaver Portal 7.3 boasts of having loads of jQuery functionalities which would increase user experience exponentially. So it’s better to get ready and learn jQuery.

I hope you find this post useful. More on jQuery to come