MeasureThat.net

Run results for: Check if Try-Catch block affects performance (In Chrome there is a warning: Not optimized: TryCatchStatement)

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Run details:
Mozilla/5.0 (iPhone; CPU iPhone OS 17_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Mobile/15E148 Safari/604.1
Mobile Safari 17
iOS 17.6.1
Mobile
3 months ago
Test name Executions per second
Without try catch 2375533.8 Ops/sec
With try-catch 2419194.5 Ops/sec
Script Preparation code:
AخA
 
var arr = [];
var count = 1000;
for(var i = 0; i<count; i++)
{
  arr.push(i);
}
Tests:

  • Without try catch

     
    var arrLen = arr.length;
    var sum = 0;
    for (var i = 0; i < arrLen; i++){
      sum = arr[i];
    }

  • With try-catch

     
    try{
      var arrLen = arr.length;
      var sum = 0;
      for (var i = 0; i < arrLen; i++){
        sum = arr[i];
      }
    }
    catch(e)
    {
      console.log(e.toString());
    }