Before to start with jquery, one should have some knowledge on following,
- Familiarity with basic programming.
- knowledge of JavaScript.
- editing HTML pages.
- Some Knowledge of CSS (Selectors).
What is jQuery ?
- jQuery is a lightweight, JavaScript library that simplifies interaction between HTML and JavaScript.
- A framework for Client Side JavaScript.
- Framework provide useful alternatives for common programming tasks, creating functionality which may not be available or cumbersome to use within a language.
How can it help you ?
- jQuery makes writing JavaScript much easier.
- Cross browser support ( IE 6.0+, FF 1.5+, Safari 2.0+, Opera 9.0+)
- CSS like syntax – easy for developers/non developers to understand.
- Well documented.
jQuery syntax
$.func(..); / jQuery.func(..);
Or
$(selector).func(..); / jQuery(selector).func(..);
$ : jQuery Object, can be used instead of jQuery.
selector : Selector syntax, many different selectors allowed.
func : Chainable, most functions return a jQuery object.
(…) : Function parameters.
Three major concepts of jQuery
- The $() function
- Chainability
- Get > Act
