Promise vs Callback (v5)

Revision 5 of this benchmark created by Mariusz Nowak on

Setup

var cb = function (deferred) {
      setTimeout(function() {
        deferred.resolve();
      }, 0)
    };
    
    var promise = function (deferred) {
      new Promise(function(resolve) {
        resolve('data');
      }).then(function () {
        setTimeout(function() {
           deferred.resolve();
        }, 0);
    });
    };

Test runner

Ready to run.

Testing in
TestOps/sec
Callback
// async test
cb(deferred);
ready
Promise
// async test
promise(deferred);
ready

Revisions

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