The DOM node context originally passed to jQuery(); if none was passed then context will likely be the document. The .context property was deprecated in jQuery 1.10 and is only maintained to the extent needed for supporting .live() in the jQuery Migrate plugin. It may be removed without notice in a future version. The .live() method for binding event handlers uses this property to determine the root element to use for its event delegation needs. The v

Create a deep copy of the set of matched elements. The .clone() method performs a deep copy of the set of matched elements, meaning that it copies the matched elements as well as all of their descendant elements and text nodes. Note: For performance reasons, the dynamic state of certain form elements (e.g., user data typed into textarea and user selections made to a select) is not copied to the cloned elements. When cloning input elements, the dynami

Select all elements that contain the specified text. The matching text can appear directly within the selected element, in any of that element's descendants, or a combination thereof. As with attribute value selectors, text inside the parentheses of :contains() can be written as a bare word or surrounded by quotation marks. The text must have matching case to be selected. jQuery( ":contains(text)" )

Get the children of each element in the set of matched elements, optionally filtered by a selector. Given a jQuery object that represents a set of DOM elements, the .children() method allows us to search through the children of these elements in the DOM tree and construct a new jQuery object from the matching elements. The .children() method differs from .find() in that .children() only travels a single level down the DOM tree while .find() can traver

Add handlers to be called when the Deferred object is either resolved or rejected. The argument can be either a single function or an array of functions. When the Deferred is resolved or rejected, the alwaysCallbacks are called. Since deferred.always() returns the Deferred object, other methods of the Deferred object can be chained to this one, including additional .always() methods. When the Deferred is resolved or rejected, callbacks are executed in

Matches all elements that are checked or selected. The :checked selector works for checkboxes, radio buttons, and select elements. For select elements only, use the :selected selector. jQuery( ":checked" ) version added: 1.0 Examples: Determine how many input elements are checked.

Remove from the queue all items that have not yet been run. When the .clearQueue() method is called, all functions on the queue that have not been executed are removed from the queue. When used without an argument, .clearQueue() removes the remaining functions from fx, the standard effects queue. In this way it is similar to .stop(true). However, while the .stop() method is meant to be used only with animations, .clearQueue() can also be used to remov

Selects all direct child elements specified by "child" of elements specified by "parent". As a CSS selector, the child combinator is supported by all modern web browsers including Safari, Firefox, Opera, Chrome, and Internet Explorer 7 and above, but notably not by Internet Explorer versions 6 and below. However, in jQuery, this selector (along with all others) works across all supported browsers, including IE6. The child combinator (E > F) can be

Store arbitrary data associated with the matched elements. The .data() method allows us to attach data of any type to DOM elements in a way that is safe from circular references and therefore from memory leaks. We can set several distinct values for a single element and retrieve them later: $( "body" ).data( "foo", 52 ); $( "body" ).data( "bar", { myType: "test", count: 40 } ); $( "body" ).data( { baz: [ 1, 2, 3 ] } ); $( "body" ).data( "foo" ); // 52

Bind an event handler to the "dblclick" JavaScript event, or trigger that event on an element. This method is a shortcut for .on( "dblclick", handler ) in the first two variations, and .trigger( "dblclick" ) in the third. The dblclick event is sent to an element when the element is double-clicked. Any HTML element can receive this event. For example, consider the HTML: <div id="target"> Double-click here </div> <div id="other"> T