Moderate TypeScript Question 105 of 229

How do you type a React component's props?

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

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I define a Props interface and annotate the function parameter.

Why interviewers care about TypeScript:

This is a process

question about TypeScript.

Panels listen for order,

trade-offs, and what you would actually do on a Frontend project - not buzzwords.

Stay structured

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

Close cleanly

End with when you use it and one common pitfall.

Before you speak the answer, walk the interviewer through these steps:

1
I define a Props
interface and annotate the function parameter.
2
Children is React.ReactNode when
I allow text and elements.
3
For event handlers I
use React.ChangeEvent of HTMLInputElement rather than any.
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.

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

Say this line

“Children is React.ReactNode when I allow text and elements.”

Break into beats

ChildrenisReactReactNodewhenI

Speaking order

2987408337471632900

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

I define a Props interface and annotate the function parameter. Children is React.ReactNode when I allow text and elements.