Run results for: array vs Float64Array vs mixed array

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36

Browser: Chrome 148

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 months ago

typedArray reverse

585K/s

array reverse

129K/s

mixed array reverse

102K/s

array i/o

51K/s

typedArray i/o

41K/s

mixed array i/o

14K/s

View exact numbers

Test name	Executions per second
✓ typedArray reverse	584,792 Ops/sec
array reverse	129,038 Ops/sec
mixed array reverse	101,601 Ops/sec
array i/o	50,912 Ops/sec
typedArray i/o	40,761 Ops/sec
mixed array i/o	13,822 Ops/sec

Script Preparation code:

var a = [...Array(10000)].map(_ => Math.random());
var ma = [...a];
ma[5000] = 'string';
var ta = (new Float64Array(10000)).map(_ => Math.random());

Tests:

array reverse
a.reverse();
typedArray reverse
ta.reverse();
array i/o
for (let i = 0; i < 10000; ++i) a[i] = a[i] + 1;
typedArray i/o
for (let i = 0; i < 10000; ++i) ta[i] = ta[i] + 1;
mixed array reverse
ma.reverse();
mixed array i/o
for (let i = 0; i < 10000; ++i) ma[i] = ma[i] + 1;