Re: [w3c/webcomponents] How can a custom element detect when it is transcluded into a shadow tree? (#504)

> and in my case, the custom elements that I'm making need to know where their slots are located and what the parent element of the slot is

I can't really answer without knowing your use-case, but I've found that you should be emitting events that parents respond to. Reaching up in the DOM tree creates a tight coupling of your child component's functionality to the DOM structure in which it's placed defeating the purpose of modularity and componentisation.

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