Run results for: Benchmark for comparing common vs unique collator object on each sort iteration

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Using a common object	8672.2 Ops/sec
Using a separate object	141.2 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

var map = new Map([...Array(1000).keys()].map(a => ([a.toString(), 5])))

var options = {
  sensitivity: 'base'
};

var collator = new Intl.Collator(undefined, options);

Tests:

Using a common object
[...map.keys()].sort(collator.compare).map(k => ([k, map.get(k)]))
Using a separate object
[...map.keys()].sort((a, b) => {var collator = new Intl.Collator(undefined, options); return collator.compare(a, b)}).map(k => ([k, map.get(k)]))

Run results for: Benchmark for comparing common vs unique collator object on each sort iteration

Using a common object

Using a separate object