Run results for: for vs foreach vs some vs for..of v6

Run details:

User agent: Mozilla/5.0 (Android 11; Mobile; rv:91.0) Gecko/91.0 Firefox/91.0

Browser: Firefox Mobile 91

Operating system: Android

Device Platform: Mobile

Date tested: 3 years ago

Script Preparation code:

var array = new Array(1000);
var a = ''

Tests:

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