I want to pass the value of 'undefined' on a multiple parameter function but without omitting the parameter.

What do I mean with without omitting the parameter. I mean that we should not just omit the parm2 like this example:

function myFunction (parm1, parm2) {}

myFunction(abc);

This will indeed make parm2 undefined, but I am not allowed to do it this way because I will need to specify other parameters AFTER the omitted parameter, so the previous method won't work in the case I want to make parm1 undefined BUT also want to have other parameters after this one to hold a value.

I have tried solving the problem with:

myFunction( ,abc); //doesn't seem to work

Update:

and myFunction(undefined, abc); « this reliably works now.

However, it is worth mentioning that:

Setting a variable to undefined is considered a bad practice, we
should be using null instead.