Promise vs Callback

JavaScript performance comparison

Revision 4 of this test case created by alFReD-NSH

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var getData = function getData(callback) {
    callback('data');
  };
  
  var getPromise = function () {
    return new Promise(getData)
  };

};
</script>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Callback
// async test
var d = deferred;

getData(function(data) {
  d.resolve()
})
pending…
Promise
// async test
var d = deferred;

getPromise().then(function(data) {
  d.resolve()
})
pending…

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Revisions

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