Append string vs join array (v30)

Revision 30 of this benchmark created by Jerry on

Setup

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

Test runner

Ready to run.

Testing in
TestOps/sec
String append #1
str += 'Quick ' + w1 + ' fox ' + w2 + ' over the ' + w3 + ' dog. ';
ready
String append #2
str += 'Quick ';
str += w1;
str += ' fox ';
str += w2;
str += ' over the ';
str += w3;
str += ' dog. ';
ready
Array join #1
arr[i++] = 'Quick ' + w1 + ' fox ' + w2 + ' over the ' + w3 + ' dog. ';
arr.join('');
ready
Array join #2
arr[i++] = 'Quick ';
arr[i++] = w1;
arr[i++] = ' fox ';
arr[i++] = w2;
arr[i++] = ' over the ';
arr[i++] = w3;
arr[i++] = ' dog. ';
arr.join('');
ready
Array join #3
arr[arr.length] = 'Quick ';
arr[arr.length] = w1;
arr[arr.length] = ' fox ';
arr[arr.length] = w2;
arr[arr.length] = ' over the ';
arr[arr.length] = w3;
arr[arr.length] = ' dog. ';
arr.join('');
ready

Revisions

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