jQuery Mobile

get() return a DOM element. The method retrieve the DOM elements matched by the jQuery object. But as it is a DOM element and it is not a jQuery-wrapped object. So jQuery functions can't be used.

Using jQuery property "jQuery.fx.off", which when set to true, disables all the jQuery animation. When this is done, all animation methods will immediately set elements to their final state when called, rather than displaying an effect.

.length property and which does the same thing. But the .length property is preferred because it does not have the overhead of a function call.

eq() returns the element as a jQuery object. This method constructs a new jQuery object from one element within that set and returns it. That means that you can use jQuery functions on it.

Using jQuery ".stop()" method.

Use .remove() when you want to remove the element itself, as well as everything inside it. In addition to the elements themselves, all bound events and jQuery data associated with the elements are removed.

The $.each() function is used to iterate over a jQuery object. The $.each() function can be used to iterate over any collection, whether it is an object or an array.

jQuery .size() method returns number of element in the object. But it is not preferred to use the size() method as jQuery provide.

The basic difference is the parent() function travels only one level in the DOM tree, where parents() function search through the whole DOM tree.

► Google

► Microsoft

► jQuery

► It reduces the load from your server.

► It saves bandwidth. jQuery framework will load faster from these CDN.

► The most important benefit is it will be cached, if the user has visited any site which is using jQuery framework from any of these CDN.

This will select all the div elements on page.

$('.selected'). This selector is known as class selector. We need to prefix the class name with "." (dot).

ID and element selectors are the fastest selectors in jQuery.

Yes. jQuery can be used for making ajax request.

class selectors are the slow compare to ID and element.

event.stopPropagation(): Prevents the event from bubbling up the DOM tree, preventing any parent handlers from being notified of the event. For example, if there is a link with a click method attached inside of a DIV or FORM that also has a click method attached, it will prevent the DIV or FORM click method from firing.

e.preventDefault() will prevent the default event from occurring, e.stopPropagation() will prevent the event from bubbling up and return false will do both.

Using $.type(Object) which returns the built-in JavaScript type for the object.