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Read tests about different array types

Preparation code

 
<script>
  Benchmark.prototype.setup = function() {
    var sectorcount = 48;
    var sectorsize = 512;
    var cnt = sectorsize * sectorcount;
    var aru = new Uint8Array(cnt);
    var arn = new Array(cnt);
    var rand = Math.floor(Math.random() * (cnt + 1))
    
    for (i = 0; i < cnt; i++) {
      aru[i] = 0xff;
      arn[i] = 0xff;
    }
  };
</script>

Test runner

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var a = arn[rand];

var a = aru[rand];

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