Run results for: Last item in array Slice vs Length - 1

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:137.0) Gecko/20100101 Firefox/137.0

Browser: Firefox 137

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

Length - 1

1.2M/s

Slice

32K/s

View exact numbers

Test name	Executions per second
✓ Length - 1	1,195,875 Ops/sec
Slice	31,880 Ops/sec

Script Preparation code:

var arr = [];
for (let i = 0; i < 1000000; i++) {
  arr.push(i);
}

Tests: