Run results for: test for each and for let i

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Safari/537.36

Browser: Chrome 150

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 11 days ago

for let i

75/s

for each

10/s

for in

3/s

View exact numbers

Test name	Executions per second
✓ for let i	75 Ops/sec
for each	10 Ops/sec
for in	3 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->
<script src=''></script>

Script Preparation code:

/*your preparation JavaScript code goes here
To execute async code during the script preparation, wrap it as function globalMeasureThatScriptPrepareFunction, example:*/
async function globalMeasureThatScriptPrepareFunction() {
    // This function is optional, feel free to remove it.
    // await someThing();
}

let foo = new Array(10000000);
foo = foo.fill(0).map((x, i) => i + 1); 

function bar1() {
   let sum = 0;
   for (let i = 0; i < 10000000; ++i) {
          sum += foo[i];
   }
   return sum;
}

function bar2() {
    let sum = 0;
    for (let i in foo) {
       sum += foo[i];
   }
   return sum;
}

function bar3() {
    let sum = 0;
    foo.forEach((ele) => sum += ele);
    return sum;
}

Tests:

for let i
/*When writing async/deferred tests, use `deferred.resolve()` to mark test as done*/ bar1()
for in
bar2()
for each
bar3()