Run results for: For_Oksana

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36

Browser: Chrome 109

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
A	952838400.0 Ops/sec
B	965588608.0 Ops/sec

Script Preparation code:

const users = [];
const r = [];

for (let i = 0; i < 1000000; i++) {
    users.push({
        name : (Math.random() + 1).toString(36).substring(7),
        isVerified : (Math.random() < 0,5)
    })
}

Tests:

A
const exportVerifiedUsers = users => { return users.filter(u => u.isVerified).map(u => u.name).join(', ') }
B
const exportVerifiedUsers = users => {users.forEach(u => {if (u.isVerified) {r.push(u.name)}}); return r.join(', '); }