Benchmark: spread undefined vs empty object

Tests:

undefined
for (let i = 0, n = 10000; i < n; i++) { const obj = { ...undefined }; }
empty
for (let i = 0, n = 10000; i < n; i++) { const obj = { ...{} }; }

Rendered benchmark preparation results:

Previous results

Test case name	Result
undefined
empty

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Latest run results:

Run details: (Test run date: 2 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser/OS: Chrome 120 on Mac OS X 10.15.7

Test name	Executions per second
undefined	1703.3 Ops/sec
empty	9472.9 Ops/sec

spread undefined vs empty object (version: 0)