?. and ?? operators not handled by parser

[korri123]

var i = undefined;
i?.call();
var x = i ?? 0;

This will cause a parser error. Not sure if you use a library for this that needs updating or not.

[ben-sb]

Yes the parser is quite outdated unfortunately. Not too much I can do besides implementing the features myself/rewriting the project which I don't have time for currently.