Run results for: setTimeout vs wrapped setTimeout

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/134.0.6998.33 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 134

Operating system: iOS 18.3.1

Device Platform: Mobile

Date tested: one year ago

setTimeout

2.9M/s

setTimeout2

2.5M/s

View exact numbers

Test name	Executions per second
✓ setTimeout	2,923,072 Ops/sec
setTimeout2	2,457,724 Ops/sec

Script Preparation code:

var i = 0;
var setTimeout2 = function(callback, timeout) {
  if (!document.hidden) return window.setTimeout(callback, timeout);
}

Tests:

setTimeout
setTimeout(function(){i++},0);
setTimeout2
setTimeout2(function(){i++},0);