Benchmark: sort vs filters vs for

Script Preparation code:

var a = [];
var b = {};

for (var i = 0; i < 5000; i++) {
    a.push(i);
    b[i] = `${i}`;
}

Tests:

Sort
var sorting = a.slice().sort((first, second) => { if(b[first] && !b[second]) return -1; if(b[second] && !a[second]) return 1; return 0; })
ForEach
var selected = []; var unselected = []; var filtered = a.forEach((item) => { if(b[item]) { selected.push(item); } else { unselected.push(item); } }); selected.concat(unselected)
For Loop
var selected = []; var unselected = []; for (var i = 0; i < a.length; i++) { const key = a[i]; if(b[key]) { selected.push(key); } else { unselected.push(key); } } selected.concat(unselected)

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Browser/OS: Chrome 97 on Mac OS X 10.15.7

sort vs filters vs for (version: 1)