Run results for: reduce vs map + filter

Run details:

User agent: Mozilla/5.0 (Linux; Android 9; G8142) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.120 Mobile Safari/537.36

Browser: Chrome Mobile 91

Operating system: Android

Device Platform: Mobile

Date tested: 3 years ago

Test name	Executions per second
reduce	2201.2 Ops/sec
map + filter	1039.7 Ops/sec

Script Preparation code:

var arr = (() => {
  const res = new Array(10000).fill({id: 0});
  res[9000] = {id: 1};
  return res;
})();

Tests:

reduce
arr.reduce((acc,x) => { if (x.id > 0) { acc.push(x.id) } return acc; },[])
map + filter
arr.map(x => x.id).filter(x => x > 0)