Run results for: not not vs yes

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.120 Safari/537.36 OPR/64.0.3417.92

Browser: Opera 64

Operating system: Mac OS X 10.15.1

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Yes	6482120.0 Ops/sec
not not	6930566.5 Ops/sec

Script Preparation code:

arr = new Array(100).fill(6);
arrWithNots = new Array(20).fill(null);
test = [arr, arrWithNots];

Tests:

Yes
test.filter(x => x);
not not
test.filter(x => !!x);

Run results for: not not vs yes

!! vs !!!

Yes

not not