Easy React Question 35 of 229

What are props in React?

Frontend Master · Speak this in 60–90 seconds · Faridabad & Delhi NCR

PICTURE THIS: REACT RENDER CYCLE

State changesetState / hook

ReconcileVirtual DOM diff

CommitUpdate real DOM

Simple meaning

Props are inputs passed from parent to child and should be treated as read-only.

WHY — React instead of guessing?

Why interviewers care about React:

React questions separate people

who only read docs from people who shipped.

Keep it short, concrete,

and tied to Frontend work.

Stay structured

Name the idea, why it exists, then one short example.

Close cleanly

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:

1
Props are inputs passed
from parent to child and should be treated as read-only.
2
If a child needs
to change something, it calls a callback the parent passed down.
3
That one-way data flow
is the core React story in campus interviews.
4
Give an example
One tiny concrete case you can say aloud.
5
Common mistake
What juniors usually get wrong.
6
Close
When you pick this over the alternative.

EXAMPLE — See it in action

Here's a short line you can speak, broken into clear beats:

Say this line

“If a child needs to change something, it calls a callback the parent passed down”

Break into beats

Ifachildneedstochange

Speaking order

2987408337471632900

Note: Adapt this scaffold to your own project — keep it under 60–90 seconds.

Key takeaway

Props are inputs passed from parent to child and should be treated as read-only. If a child needs to change something, it calls a callback the parent passed down.