Benchmark: Array: delete vs null vs undefined vs 0

Script Preparation code:

var arr = [];
for (let i = 0; i < 1000; i++) {
    arr[i] = { test: 1 };
}

Tests:

Rendered benchmark preparation results:

Previous results

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Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36

Browser/OS: Chrome 111 on Windows

Array: delete vs null vs undefined vs 0 (version: 0)