Run results for: IIFE vs eval()

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser: Chrome 122

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
eval	3806187.0 Ops/sec
iife	15137022.0 Ops/sec

Script Preparation code:

var result;

Tests:

eval
eval("(function(){var sum = 0; for (var i = 1; i < 100; i++){sum += i;} return sum;}());");
iife
(function(){var sum = 0; for (var i = 1; i < 100; i++){sum += i;} return sum;}());