Run results for: Array(1,000,000 length) Mapping | Array.from vs Spread

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:133.0) Gecko/20100101 Firefox/133.0

Browser: Firefox 133

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

Array.from

154/s

Spread

109/s

View exact numbers

Test name	Executions per second
✓ Array.from	154 Ops/sec
Spread	109 Ops/sec

Script Preparation code:

const largeArray = [];
for (let i = 0; i < 1_000_000; i++) {
  largeArray.push(i);
}

Tests: