string concat vs array join (v66)

Revision 66 of this benchmark created on

Setup

var words = ['this', 'is', 'a', 'test'];
  
  var text = words[0];
  
  var a = [words[0]];
  
  var i;
  
  var text2;

Test runner

Ready to run.

Testing in
TestOps/sec
Concat
for(i = 1; i < 10000; ++i)
{
    text += ' ' + words[i & 3];
}

text2 = text.slice(0, text.length-1) + 'x';
ready
Join
for(i = 1; i < 10000; ++i)
{
    a.push(words[i & 3]);
}

a[a.length - 1] = 'x';
text2 = a.join(' ');
ready

Revisions

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