concat vs + vs join (v48)

Revision 48 of this benchmark created on

Description

How to concat strings faster.

Setup

var i = Math.floor(Math.random() * 10);
    
    var a = '' + i++;
    var b = '' + i++;
    var c = '' + i++;
    var d = '' + i;

Test runner

Ready to run.

Testing in
TestOps/sec
concat
a.concat(', ', b, ', ', c, ', ', d, ', ', b, ', ', c, ', ', d, ', ', b, ', ', c, ', ', d, ', ', b, ', ', c, ', ', d, ', ', b, ', ', c, ', ', d, ', ', b, ', ', c, ', ', d, ', ', b, ', ', c, ', ', d, ', ', b, ', ', c, ', ', d, ', ', b, ', ', c, ', ', d, ', ', b, ', ', c, ', ', d, ', ', b, ', ', c, ', ', d, ', ', b, ', ', c, ', ', d);
ready
+
a + ', ' + b + ', ' + c + ', ' + d + b + ', ' + c + ', ' + d + b + ', ' + c + ', ' + d + b + ', ' + c + ', ' + d + b + ', ' + c + ', ' + d + b + ', ' + c + ', ' + d + b + ', ' + c + ', ' + d + b + ', ' + c + ', ' + d + b + ', ' + c + ', ' + d + b + ', ' + c + ', ' + d + b + ', ' + c + ', ' + d + b + ', ' + c + ', ' + d;
ready
join
[a, b, c, d, b, c, d, b, c, d, b, c, d, b, c, d, b, c, d, b, c, d, b, c, d, b, c, d, b, c, d, b, c, d, b, c, d].join(', ');
ready

Revisions

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