Run results for: Array Some vs Map + Includes

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Some

25K/s

Map + Includes

15K/s

View exact numbers

Test name	Executions per second
✓ Some	25,387 Ops/sec
Map + Includes	15,499 Ops/sec

Script Preparation code:

const list = [];
for (var i = 0; i < 10000; i++) {
    list.push({
        email: `random${i}@random.com`
    })
}

Tests:

Some
const testEmail = "random9999@random.com"; const result = list.some(({ email }) => email === testEmail);
Map + Includes
const testEmail = "random9999@random.com"; const result = list.map(({ email }) => email).includes(testEmail);