Run results for: Combine "set with destructuring" vs "map with push"

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36

Browser: Chrome 117

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
set with destructuring	3611116.5 Ops/sec
map with push	4491300.0 Ops/sec

Tests:

set with destructuring
const teachers = [{id: 'A'}, {id: 'B'}, {id: 'C'}, {id: 'F'}, {id: 'H'}, {id: 'I'}]; const admins = [{id: 'A'}, {id: 'C'}, {id: 'D'}, {id: 'E'}, {id: 'F'}, {id: 'G'}]; const ids = new Set(teachers.map(item => item.id)); const merged = [...teachers, ...admins.filter(item => !ids.has(item.id))];
map with push
const users = [{id: 'A'}, {id: 'B'}, {id: 'C'}, {id: 'F'}, {id: 'H'}, {id: 'I'}]; const addendUsers = [{id: 'A'}, {id: 'C'}, {id: 'D'}, {id: 'E'}, {id: 'F'}, {id: 'G'}]; const combinedUsersMap = {}; const combinedUsers = []; users.forEach(user => { if (!combinedUsersMap[user.id]) { combinedUsersMap[user.id] = true; combinedUsers.push(user); } }); addendUsers.forEach(addendUser => { if (!combinedUsersMap[addendUser.id]) { combinedUsersMap[addendUser.id] = true; combinedUsers.push(addendUser); } });