Combined or Separate Event Handlers

JavaScript performance comparison

Revision 2 of this test case created

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<div id="elm"></div>
<script>
Benchmark.prototype.setup = function() {
    var $elm = $('#elm');
};
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
Combined (2 cases)
$elm.on('click keydown', function(e){
  switch(e.type) {
    case 'click':
      break;
    case 'keydown':
      break;
   }
});

$elm.trigger('click');
$elm.trigger('keydown');
 
pending…
Separate (2 cases)
$elm.on('click', function(e){

});

$elm.on('keydown', function(e){

});


$elm.trigger('click');
$elm.trigger('keydown');
 
pending…
if/else (2 cases)
$elm.on('click keydown', function(e){
  var type = e.type;
  if (type === 'click') {

  } else if (type === 'keydown') {

  }

});

$elm.trigger('click');
$elm.trigger('keydown');
 
pending…

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