Run results for: for vs foreach vs some vs for..of and reduce - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.102 Safari/537.36

Browser: Chrome 98

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
for	7168.6 Ops/sec
foreach	554305.7 Ops/sec
some	582453.2 Ops/sec
for..of	11140.3 Ops/sec
reduce	555651.6 Ops/sec

Script Preparation code:

var array = new Array(1000).map( () => 1);

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]; }
reduce
array.reduce( function(a, b ) { a+b; }, 1 )

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