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Run results for:
eval vs new Function vs function(Sample JS Functions)
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Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 18_1_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/131.0.6778.103 Mobile/15E148 Safari/604.1
Browser:
Chrome Mobile iOS 131
Operating system:
iOS 18.1.1
Device Platform:
Mobile
Date tested:
one year ago
Test name
Executions per second
eval
4235939.5 Ops/sec
new Function
5004962.0 Ops/sec
regular
4904713.5 Ops/sec
Script Preparation code:
var newFunc = new Function("let r = Math.random().toString(36).substring(7).includes('x');"); var regular = function(){ return Math.random().toString(36).substring(7).includes('x');; }
Tests:
eval
eval("let r = Math.random().toString(36).substring(7).includes('x');");
new Function
newFunc();
regular
regular()