Benchmark: Compare Nullish coalescing and OR operator

Script Preparation code:

var undefinedList = Array.from({length: 1000})

Tests:

Nullish coalescing operator
const a = undefinedList.reduce((total, item) => {total.push(item ?? true); return total}, [])
Logical OR
const a = undefinedList.reduce((total, item) => {total.push(item || true); return total}, [])

Rendered benchmark preparation results:

Previous results

Test case name	Result
Nullish coalescing operator
Logical OR

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

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.2 Safari/605.1.15

Browser/OS: Safari 14 on Mac OS X 10.15.7

Test name	Executions per second
Nullish coalescing operator	187049.6 Ops/sec
Logical OR	188194.1 Ops/sec

Compare Nullish coalescing and OR operator (version: 0)