Benchmark: map vs for of - MeasureThat.net

Script Preparation code:

var itemCount = 10000
var items = new Array(itemCount)

for (var i = itemCount - 1; i >= 0; i--) {
  items[i] = { id: i, data: 920501 }
}

Tests:

Rendered benchmark preparation results:

Previous results

Test case name	Result
for in
map

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Latest run results:

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

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser/OS: Chrome 122 on Linux

Test name	Executions per second
for in	1430.0 Ops/sec
map	6575.2 Ops/sec

map vs for of (version: 0)