Error: App Not Setup: The developers of this app have not set up this app properly for Facebook Login.[Sloved]

Step-1 Go to Apps and select your APP and click on the Status & review then select "YES" access public then click confirm button to finished.

Now you enjoy.................:)

jquery Understanding Event Delegation

The delegate() method attaches one or more event handlers for specified elements that are children of selected elements, and specifies a function to run when the events occur.
Event handlers attached using the delegate() method will work for both current and FUTURE elements (like a new element created by a script).

As of jQuery version 1.7, the on() method is the preferred method for attaching event handlers for selected elements.

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When a <p> element inside a <div> element is clicked, change the background color of all <p> elements:

$("div").delegate("p","click",function(){
  $("p").css("background-color","pink");
});

Try it yourself »

Syntax

$(selector).delegate(childSelector,event,data,function)

Parameter	Description
childSelector	Required. Specifies one or more child elements to attach the event handler to
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 occurs

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