Description

The focusin event occurs when an element gets focus (when selected by a mouse click or by "tab-navigating" to it)

The .focusin() method specifies a function to run when a focusin event occurs on any child element of the selected element.

Unlike the focus() method, the focusin() method triggers if any child element gets focus.

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This method has the form:

.focusin(function())

Parameter	Description
function()	(required) Specifies the function to run when the focusin event occurs.

Return Value

This form returns a jQuery object.

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This method has the alternate form:

.focusin(data,function())

Parameter	Description
data	(optional) Specifies additional data to pass along to the function
function()	(required) Specifies the function to run when the focusin event occurs.

Return Value

This form returns a jQuery object.

Examples

Change background color of an input field when the div element (or any child elements of it) gets focus:

$("div").focusin(function(){
  $(this).css("background-color","#FFFFCC");
	});;