Benchmark: Filter and Map vs Reduce

Script Preparation code:

var array = Array.from(Array(1000)).map((x, i) => ({ count: i, isOdd: Boolean(i % 2) }))

Tests:

Filter and Map
array.filter(x => x.isOdd).map(x => ({ stringCount: x.count.toString() }))
Reduce
array.reduce((acc, x) => x.isOdd ? [...acc, { stringCount: x.count.toString() }] : acc, [])

Rendered benchmark preparation results:

Previous results

Test case name	Result
Filter and Map
Reduce

ⓘ Get performance results from real users on your website with Request Metrics.

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/605.1.15 (KHTML, like Gecko) Version/17.3 Safari/605.1.15

Browser/OS: Safari 17 on Mac OS X 10.15.7

Test name	Executions per second
Filter and Map	60512.2 Ops/sec
Reduce	2412.3 Ops/sec

Filter and Map vs Reduce (version: 0)