Run results for: Map and Filter vs forEach

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36

Browser: Chrome 90

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
map and filter	1707840.0 Ops/sec
forEach	1512166.0 Ops/sec

Script Preparation code:

var jobIds = [1, 2, 3, 4, 5]
var jobs = {
  1: { status: 2 },
  2: { status: 1 },
  3: { status: 3 },
  4: { status: 2 },
  5: { status: 3 }
}

Tests:

map and filter
var activeJobs = jobIds.map(id => jobs[id]).filter(job => job.status !== 3)
forEach
var activeJobs = [] jobIds.forEach(id => { var job = jobs[id] if (job.status !== 3) activeJobs.push(job) })