what's the usage/meaning of jQuery event.detail?
<p>I handle the click event on a button and when clicking it the <code>e.detail = 0</code>, when I hit enter inside a textbox and for some reason the button click gets triggered (asp.net) <code>e.detail = 1</code>.</p>

<p>I couldn't find this in the jQuery <a href="http://api.jquery.com/category/events/event-object/" rel="nofollow">documentation</a>, it's just written that it is there but it doesn't say what it does.</p>

<blockquote>
  <p><strong>Event Properties</strong></p>
  
  <p>The following properties are guaranteed to be members of the event
  object, though some of their values may be undefined, depending on the
  event:</p>
  
  <p>altKey, attrChange, attrName, bubbles, button, cancelable, charCode,
  clientX, clientY, ctrlKey, currentTarget, data, <strong><em>detail</em></strong>,
  eventPhase, fromElement, handler, keyCode, layerX, layerY, metaKey,
  newValue, offsetX, offsetY, originalTarget, pageX, pageY, prevValue,
  relatedNode, relatedTarget, screenX, screenY, shiftKey, srcElement,
  target, toElement, view, wheelDelta, which</p>
</blockquote>
