Benchmark: for vs foreach vs some vs every vs for..of vs map / 2 - MeasureThat.net

Script Preparation code:

var array = Array.from(Array(1000).keys());

Tests:

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

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

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

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36

Browser/OS: Chrome 111 on Linux

View result in a separate tab

Test name	Executions per second
for	142.7 Ops/sec
foreach	156.8 Ops/sec
some	158.6 Ops/sec
every	106403.3 Ops/sec
for..of	130.1 Ops/sec
map	169.1 Ops/sec