casevsswitch (v7)

Revision 7 of this benchmark created on

Preparation HTML

<script>
  var array = [
"The string is for case 'a'",
"The string is for case 'b'",
"The string is for case 'c'",
"The string is for case 'd'",
"The string is for case 'e'",
"The string is for case 'f'",
"The string is for case 'g'",
"The string is for case 'h'",
"The string is for case 'i'",
"The string is for case 'j'"];
  
  
  var objDictionary = {
    'a' : "The string is for case 'a'",
    'b' : "The string is for case 'b'",
    'c' : "The string is for case 'c'",
    'd' : "The string is for case 'd'",
    'e' : "The string is for case 'e'",
    'f' : "The string is for case 'f'",
    'g' : "The string is for case 'g'",
    'h' : "The string is for case 'h'",
    'i' : "The string is for case 'i'",
    'j' : "The string is for case 'j'"
  }
  
  var objFuncDictionary = {
    'a' : function() {return "The string is for case 'a'";},
    'b' : function() {return "The string is for case 'b'";},
    'c' : function() {return "The string is for case 'c'";},
    'd' : function() {return "The string is for case 'd'";},
    'e' : function() {return "The string is for case 'e'";},
    'f' : function() {return "The string is for case 'f'";},
    'g' : function() {return "The string is for case 'g'";},
    'h' : function() {return "The string is for case 'h'";},
    'i' : function() {return "The string is for case 'i'";},
    'j' : function() {return "The string is for case 'j'";},
  }

var arrayFns = [
    function() {return "The string is for case 'a'";},
    function() {return "The string is for case 'b'";},
    function() {return "The string is for case 'c'";},
    function() {return "The string is for case 'd'";},
    function() {return "The string is for case 'e'";},
    function() {return "The string is for case 'f'";},
    function() {return "The string is for case 'g'";},
    function() {return "The string is for case 'h'";},
    function() {return "The string is for case 'i'";},
    function() {return "The string is for case 'j'";},
  ]


function switchLookup(strKey) {
switch( strKey ) {
  case 'a' : 
    return "The string is for case 'a'";
    break;
    
  case 'b' : 
    return "The string is for case 'b'";
    break;
    
  case 'c' : 
    return "The string is for case 'c'";
    break;
    
  case 'd' : 
    return "The string is for case 'd'";
    break;
    
  case 'e' : 
    return "The string is for case 'e'";
    break;
    
  case 'f' : 
    return "The string is for case 'f'";
    break;
    
  case 'g' : 
    return "The string is for case 'g'";
    break;
    
  case 'h' : 
    return "The string is for case 'h'";
    break;
    
  case 'i' : 
    return "The string is for case 'i'";
    break;
    
  case 'j' : 
    return "The string is for case 'j'";
    break;
}
}

var rands = [], randc = [];
for(var i = 0; i < 100; i++) { 
rands[i] = ~~(Math.random()*10); 
randc[i] = String.fromCharCode(97 + rands[i]);
}
</script>

Test runner

Ready to run.

Testing in
TestOps/sec
Lookup by object
for(var i = 0; i < 100; i++) { 
strValue = objDictionary[randc[i]];
}
ready
Lookup by switch
for(var i = 0; i < 100; i++) { 
switchLookup(randc[i]);
}
ready
Lookup by array
for(var i = 0; i < 100; i++) { 
strValue = array[rands[i]];
}
ready
Lookup by object function
for(var i = 0; i < 100; i++) { 
strValue = objFuncDictionary[randc[i]]();
}
ready
Lookup by array function
for(var i = 0; i < 100; i++) { 
strValue = arrayFns[rands[i]]();
}
ready

Revisions

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