Primitive value string vs Wrapper Object String - charAt() (v2)

Revision 2 of this benchmark created on

Preparation HTML

str1.charAt(0) = <div id="id1"></div><br>
str2.["0"] = <div id="id2"></div>

Setup

var str11 = ""+Math.random();
    var str12 = ""+Math.random();
    var str21 = new String(str11);
    var str22 = new String(str12);
    
    var i = "(idle)",
        k = "(idle)";

Teardown


    var x = document.getElementById("id1"); x.innerHTML = i;
    var y = document.getElementById("id2"); y.innerHTML = k;

Test runner

Ready to run.

Testing in
TestOps/sec
Primitive value string str1.charAt(0)
i = str11.charAt(0);
var tmp = str11; str11 = str12; str12 = tmp;
ready
Wrapper object string str2["0"]
k = str21["0"];
var tmp = str21; str21 = str22; str22 = tmp;
ready

Revisions

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