Run results for: for vs foreach vs some vs for..of input change

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 3 months ago

Test name	Executions per second
do while	4015435.2 Ops/sec
foreach	4001954.2 Ops/sec
some	4102275.2 Ops/sec
for..of	3994684.0 Ops/sec
for static num	3958007.8 Ops/sec
for static num hex	3980112.0 Ops/sec
unroll	4158971.2 Ops/sec

Script Preparation code:

var array = new Array(25);
for (let i = 0; i < 25; ++i) {
  var x = document.createElement("input");
  x.setAttribute("type", "checkbox");
  x.checked=true;
  array[i]=x;
}

Tests:

do while
let i=0; do { array[i].checked=false; i++; } while (i< 0x19);
foreach
array.forEach(i=>i.checked=false);
some
array.some(i=>i.checked=false);
for..of
for (let i of array) i.checked=false;
for static num
for (var i = 0; i < 25; i++) array[i].checked=false;
for static num hex
for (var i = 0x0; i < 0x19; i++) array[i].checked=false;
unroll
array[0x00].checked=false; array[0x01].checked=false; array[0x02].checked=false; array[0x03].checked=false; array[0x04].checked=false; array[0x05].checked=false; array[0x06].checked=false; array[0x07].checked=false; array[0x08].checked=false; array[0x09].checked=false; array[0x0A].checked=false; array[0x0B].checked=false; array[0x0C].checked=false; array[0x0D].checked=false; array[0x0E].checked=false; array[0x0F].checked=false; array[0x10].checked=false; array[0x11].checked=false; array[0x12].checked=false; array[0x13].checked=false; array[0x14].checked=false; array[0x15].checked=false; array[0x16].checked=false; array[0x17].checked=false; array[0x18].checked=false;

Run results for: for vs foreach vs some vs for..of input change

Compare loop performance

do while

foreach

some

for..of

for static num

for static num hex

unroll