Run results for: String split separator vs regex

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/21A329 Twitter for iPhone/10.7

Browser: Mobile Safari 17

Operating system: iOS 17.0

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
split separator	9573406.0 Ops/sec
split regex	2113741.0 Ops/sec

HTML Preparation code:

<script>
  var str = 'charlie alpha foxtrot beta gamma delta omega iota kappa lambda mu nu xi omicron theta eta zeta',
      delim = ', ';
</script>

Tests:

split separator
str.split(' ')
split regex
str.split(/\s/)

Run results for: String split separator vs regex

split separator

split regex