If a component has an optional output, in my case it looks like this: change?: EventEmitter<object>;, if I try to use it like this: (change)="handleChange($event), I get this error: Object is possibly 'undefined'.
How can I attach the handleChange function to the event only if it actually exists?
#How to use an optional output?
lost peak
How to use an optional output?
clear gust
Why do you have an optional @Output?
lost peak
Why do you have an optional `@Output`?
I didn't write it, its from a package
topaz estuary
Might wanna report it as a bug to the maintainer
true scroll
Optional outputs, that's new 😄
How can they even be optional?
WHat library is this? I'd be curious to look at the code.
true scroll
That's weird yeah.
topaz estuary
Probably just went with the ? by default from all the inputs above heheh
But that shows they never even tested it 😄
(cause it's 5 years old)
But given it's all any's and object's anyway...
clear gust
Don't be too confident in a fix...
https://github.com/formio/angular/issues/812
topaz estuary
Nah there is a fix
Just nobody merges it
Somebody should probably tell that guy it doesn't make the handler required
I guess they don't really know Angular and just provided a wrapper the best way they could
clear gust
I knew the PR, but it's been a while and nobody merged...
And I've seen really funny "workarounds" suggested, like (change?) 😄
topaz estuary
Yeah which probably just waits for an event called 'change?' heheh