With N MyElement elements and M EndEvent handlers calls NxM times each handler.

[pelicanorojo]

with this xml:
<root> <MyElement>hi<MyElement> <MyElement>bye<MyElement> </root>
and this handlers:
`
xml.on('EndElement: MyElement', (myElement) => {
console.log('detected 1');
});

xml.on('EndElement: MyElement', (myElement) => {
console.log('detected 2');
});
`

the console will have:
detected 1
detected 2
detected 1
detected 2