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noteikt vai elementa ir tāds atribūts

Question

Es apstaigāju Dom koku un mainu visiem elementiem id atribūtu. Taču ir tādi elementi (kaut vai teksts), kuriem, protams, nav id elements paredzēts un tur rodas kļūda.

Kā to novērst.. kā pārbaudīt vai dotais elements ir "elements" vai kkas cits, kam nevar būt id elements?

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