replace vs sum

JavaScript performance comparison

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
replace
var str = "qwertyuiop",
    str2;
for(var i = 0; i < 10000; i++){
   str2 = str.replace(str[0], str[0].toUpperCase());
}
pending…
sum
var str = "qwertyuiop",
    str2;
for(var i = 0; i < 10000; i++){
   str2 = str[0].toUpperCase() + str.substr(1, str.length - 1);
}
pending…

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