Run results for: eval vs new Function vs function(Sample JS Functions)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:130.0) Gecko/20100101 Firefox/130.0

Browser: Firefox 130

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

new Function

6.8M/s

regular

6.8M/s

eval

2.5M/s

View exact numbers

Test name	Executions per second
✓ new Function	6,833,708 Ops/sec
regular	6,760,968 Ops/sec
eval	2,484,899 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()