What is the difference between aria-label and aria-labelledby?
PICTURE THIS: RAG CHATBOT
Simple meaning
Aria-label is a string on the element itself.
WHY — Accessibility instead of guessing?
Why interviewers care about Accessibility:
contrast on Accessibility, not two memorised paragraphs.
the developer, then one case where picking wrong hurts.
Name the idea, why it exists, then one short example.
End with when you use it and one common pitfall.
STEPS — What happens step by step?
Before you speak the answer, walk the interviewer through these steps:
- 1Aria-label is a string
on the element itself.
- 2Aria-labelledby points at the
id of visible text, which stays in sync when copy changes.
- 3I prefer labelledby when
the name is already on screen so I do not duplicate strings.
- 4Give an example
One tiny concrete case you can say aloud.
- 5Common mistake
What juniors usually get wrong.
- 6Close
When you pick this over the alternative.
EXAMPLE — See it in action
Here's a short line you can speak, broken into clear beats:
Note: Adapt this scaffold to your own project — keep it under 60–90 seconds.
Key takeaway
Aria-label is a string on the element itself. Aria-labelledby points at the id of visible text, which stays in sync when copy changes.