Benchmark: For in vs For of

Script Preparation code:

var obj = {a: 1, b: 2, c: 3, d: 4}

Tests:

Rendered benchmark preparation results:

Previous results

Test case name	Result
for in
for of

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Latest run results:

Run details: (Test run date: 5 years ago)

User agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0

Browser/OS: Firefox 66 on Windows 7

Test name	Executions per second
for in	5616.3 Ops/sec
for of	6045.4 Ops/sec

For in vs For of (version: 0)