Description

The one() method attaches one or more event handlers for selected elements, and specifies a function to run when the events occur.

When using the one() method, the event handler function is only run ONCE for each element.

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This method has the form:

.one(event,data,function)

Parameter	Description
event	(required) Specifies one or more events to attach to the elements. Multiple event values are separated by space. Must be a valid event.
data	(optional) Specifies additional data to pass along to the function
function	(required) Specifies the function to run when the event(s) occur

Return Value

This form returns a jQuery object.

Examples

Increase the text size of a p element when it is clicked:

$("p").one("click",function(){
  $(this).animate({fontSize:"+=6px"});
});