prototype vs closures
JavaScript performance comparison
Preparation code
<script>
Benchmark.prototype.setup = function() {
function Person(name) {
this.name = name;
}
Person.prototype.get_name = function() {
return this.name;
};
Person.prototype.set_name = function(name) {
this.name = name;
};
Person.prototype.set_name1 = function(name) {
this.name = name;
};
Person.prototype.set_name2 = function(name) {
this.name = name;
};
Person.prototype.set_name3 = function(name) {
this.name = name;
};
Person.prototype.set_name4 = function(name) {
this.name = name;
};
Person.prototype.set_name5 = function(name) {
this.name = name;
};
var person = function(name) {
var _name = name;
return {
'get_name': function() {
return _name;
},
'set_name': function(name) {
_name = name;
},
'set_name1': function(name) {
_name = name;
},
'set_name2': function(name) {
_name = name;
},
'set_name3': function(name) {
_name = name;
},
'set_name4': function(name) {
_name = name;
},
'set_name5': function(name) {
_name = name;
}
};
};
var _p = new Person('John');
var _c = person('John');
};
</script>
Test runner
Warning! For accurate results, please disable Firebug before running the tests. (Why?)
Java applet disabled.
Test | Ops/sec | |
---|---|---|
Prototype init
|
|
pending… |
Closure init
|
|
pending… |
Prototype read
|
|
pending… |
Closure read
|
|
pending… |
Prototype write
|
|
pending… |
Closure write
|
|
pending… |
Prototype mutliple creations
|
|
pending… |
Closure mutliple creations
|
|
pending… |
Compare results of other browsers
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