Benchmark: arr.slice(-1)[0] vs arr[arr.length - 1]

Script Preparation code:

var arr = Array(100000).fill(1);

Tests:

Rendered benchmark preparation results:

Previous results

Test case name	Result
arr.slice(-1)[0]
arr[arr.length - 1]

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Latest run results:

Run details: (Test run date: one month ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:123.0) Gecko/20100101 Firefox/123.0

Browser/OS: Firefox 123 on Mac OS X 10.15

Test name	Executions per second
arr.slice(-1)[0]	41266820.0 Ops/sec
arr[arr.length - 1]	849750800.0 Ops/sec

arr.slice(-1)[0] vs arr[arr.length - 1] (version: 0)