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

Script Preparation code:

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()); }

Rendered benchmark preparation results:

Previous results

Test case name	Result
Without try catch
With try-catch

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

Latest run results:

Run details: (Test run date: 5 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0

Browser/OS: Firefox 65 on Windows

Test name	Executions per second
Without try catch	240391.6 Ops/sec
With try-catch	213548.3 Ops/sec

Check if Try-Catch block affects performance (In Chrome there is a warning: Not optimized: TryCatchStatement) (version: 0)