How to find the subdocument via subdocument id in mongoose?

Question

I want to find the subdocument in mongoose by subdocument id.

i am doing :

mainDoc.subDocFieldName.id(sudocId);

But it shows

'cannot find property id of undefined'

seems like mainDoc.subDocFieldName is undefined .

so how do i access the sub document.?

Answer 1

I solved this problem by :

mainDoc[subDocFieldName].id(sudocId);

Actually I was using subDocument array.