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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:132.0) Gecko/20100101 Firefox/132.0

Browser: Firefox 132

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Array.from

87/s

Spread

50/s

View exact numbers

Test name	Executions per second
✓ Array.from	87 Ops/sec
Spread	50 Ops/sec

Script Preparation code:

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

Tests: