Run results for: Convert querySelectorAll to array -

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_2_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.150 Safari/537.36

Browser: Chrome 88

Operating system: Mac OS X 11.2.1

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Array.prototype.slice.call	776.9 Ops/sec
[].slice.call	789.2 Ops/sec
...	485.7 Ops/sec

Script Preparation code:

maind = document.createElement('div');
for (let i = 0; i < 10000; i++) {
    let d = document.createElement('div');
    maind.appendChild(d);
}
document.body.appendChild(maind);

AخA
 
maind = document.createElement('div');for (let i = 0; i < 10000; i++) {    let d = document.createElement('div');    maind.appendChild(d);}document.body.appendChild(maind);

Tests:

Array.prototype.slice.call
Array.prototype.slice.call( maind.querySelectorAll('div') );
Array.prototype.slice.call( maind.querySelectorAll('div') );
[].slice.call
[].slice.call( maind.querySelectorAll('div') );
[].slice.call( maind.querySelectorAll('div') );
...
[...maind.querySelectorAll('div')]
[...maind.querySelectorAll('div')]

Run results for: Convert querySelectorAll to array -

Array.prototype.slice.call

[].slice.call

...