Benchmark: for vs foreach vs some vs for..of vs reverse for vs map - MeasureThat.net

Script Preparation code:

var array = new Array(1000);

Tests:

for
for (var i = 0; i < array.length; i++) { array[i]; }
foreach
array.forEach(function(i) { array[i]; });
some
array.some(function(i) { array[i]; });
for..of
for (var i of array) { array[i]; }
reverse for
for (var i = array.length; i >= 0 ; i--) { array[i]; }
map
array.map(function(i) { array[i]; });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
for
foreach
some
for..of
reverse for
map

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 6 days ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.54 Safari/537.36

Browser/OS: Chrome 101 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
for	7027.3 Ops/sec
foreach	491874.4 Ops/sec
some	542572.2 Ops/sec
for..of	11115.2 Ops/sec
reverse for	14552.5 Ops/sec
map	338508.8 Ops/sec