string concat vs array join

JavaScript performance comparison

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Concat
var text = '';

var words = ['this', 'is', 'a', 'test'];

text = words[0];

for(var i = 1; i < 10000; ++i)
{
    text += ' ' + words[i & 3];
}


pending…
Join
var a = [];

var words = ['this', 'is', 'a', 'test'];

for(var i = 0; i < 10000; ++i)
{
    a[a.length] = words[i & 3];
}

var text = a.join(' ');
pending…
Join 2
var a = [];

var words = [1, 2, 3, 4];

for(var i = 0; i < 10000; ++i)
{
    a[i] = words[i & 3];
}

//var text = a.join(' ');
pending…
Typed Array
var a = new Uint8Array(10000);

var words = [1, 2, 3, 4];

for(var i = 0; i < 10000; ++i)
{
    a[i] = words[i & 3];
}

//var text = a.join(' ');
pending…

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