[jQuery] Expanding a sub-tree - obtaining the path to a node/tag

[jQuery] Expanding a sub-tree - obtaining the path to a node/tag


I have a tree list and when I toggle a deep item to expand/show, I
want all its parents to expand as well. What selector or method will
give me this?
I guess this is expanding the sub-tree which I can do natively, but
would like to do it via jQuery.
TIA
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HLS