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Belts, suspenders and newtometers

Preparation code

 
<script>
  Benchmark.prototype.setup = function() {
    var propcount = 0, myObjConst = function(){};
    myObjConst.prototype.ohno = "ignoremeplz";
    var myObj = new myObjConst;
    for(var i = 100;i--;){myObj[i] = i;}
    
  };
</script>

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for (var key in myObj) {
     if(Object.hasOwnProperty.call(myObj,key)){
       if(key === "ohno"){ throw new Error('Oh Noes'); }
     }
   }

if(myObj){
  for (var key in myObj) {
     if(myObj.hasOwnProperty(key)){
        if(key === "ohno"){ throw new Error('Oh Noes'); }
     }
   }
}

if(myObj){
  var key;
  for (key in myObj) {
     if(myObj.hasOwnProperty(key)){
        if(key === "ohno"){ throw new Error('Oh Noes'); }
     }
   }
}

Object.keys(myObj).forEach(function(key){
  if(key === "ohno"){ throw new Error('Oh Noes'); }
});

for (var key in myObj) {
    if(key === "ohno"){ throw new Error('Oh Noes'); }
   }

if(myObj){
  var key;
  for (key in myObj) {
     if(myObj.hasOwnProperty(key)){
        
     }
   }
}

Object.keys(myObj).forEach(function(key){
  
});

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Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

• Revision 1: published by unomi on 12th February 2012
• Revision 2: published by Heinrich Göbl on 12th February 2012
• Revision 3: published by Jimb Esser on 14th February 2012
• Revision 4: published by bga_ on 25th February 2012
• Revision 5: published on 10th March 2012

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