How to communicate from Parent to a distant child component

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1

Hi team,

From the Lightning Documentation - FireAncestors I got the info on how we can communicate from child component to a distant parent using fireAncestors. Is there any way, we can communicate from parent to a specific distant child.

For Example, In the following structure:
image
Some event in E, is supposed to make changes in K.

One way to do that is
this.tag('C.F.G.J.K').makeChanges();

In this case since we know all the parent names in the middle it is possible to make the change, but let’s say we dont know the entire parent-child tree path. So is there any function or way which can get the K tag directly from C without mentioning the other parents in the middle?

something like this.getByTagReference(‘K’).makeChanges() which would be similar to document.getElementByID() functionality used in web.

2

I’d recommend using signal-js - npm

Then you aren’t worried about the structure of children. Instead you’re just sending signals directly to whoever is subscribed.