Append string vs join array (v17)

Revision 17 of this benchmark created on

Setup

var i = 0,
        str = '',
        arr = [],
        w1 = 'brown',
        w2 = 'jumped',
        w3 = 'lazy';

Teardown


    arr.join('');

Test runner

Ready to run.

Testing in
TestOps/sec
String append #1 (in one go)
str += 'Quick ' + w1 + ' fox ' + w2 + ' over the ' + w3 + ' dog. ';
ready
String append #2 (one by one)
str += 'Quick ';
str += w1;
str += ' fox ';
str += w2;
str += ' over the ';
str += w3;
str += ' dog. ';
ready
Array join #2 (in one go)
arr.push('Quick ', w1, ' fox ', w2, ' over the ', w3, ' dog. ');
ready
Array join #2 (one by one)
arr.push('Quick ');
arr.push(w1);
arr.push(' fox ');
arr.push(w2);
arr.push(' over the ');
arr.push(w3);
arr.push(' dog. ');
ready

Revisions

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