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jsPerf.app is an online JavaScript performance benchmark test runner & jsperf.com mirror. It is a complete rewrite in homage to the once excellent jsperf.com now with hopefully a more modern & maintainable codebase.

jsperf.com URLs are mirrored at the same path, e.g:

https://jsperf.com/negative-modulo/2

Can be accessed at:

https://jsperf.app/negative-modulo/2

Test case details

Title *

Description
(Markdown syntax is allowed)

Preparation Code

Preparation HTML
(this will be inserted in the <body> of a valid HTML5 document in standards mode)
(useful when testing DOM operations or including libraries)

<script>
</script>

Setup JS

var str = 'col15 row16';
    var strlen = str.length;
    var i=0;
    var code = 0;
    var flags = 0;
    var row = 0;
    var col = 0;
    var split;
    var arr;

Teardown JS

Test cases

Test #1

Title *

Async

Code *

split = str.split(' ');
col = parseInt(split[0].substr(3));
row = parseInt(split[1].substr(3));

Test #2

Title *

Async

Code *

arr = str.match(/\d+/g)
col = parseInt(arr[0]);
row = parseInt(arr[1]);

Test #3

Title *

Async

Code *

flags = 0;
i=0;
while(i<strlen) {
    code = str.charCodeAt(i);
    if(code === 32) {
        flags = 1;
    } else if(code > 47 && code < 58) {
        if(flags === 0) {
            row = row * 10 + code - 48;
        } else {
            col = col * 10 + code - 48;
        }
    }
    i++;
}