Optional field in TS Interface

Optional member in a TypeScript interface is the one that is not a mandatory field. We can skip those field while assigning values, everything else is mandatory.

To create a optional member we can use ? in front of the member and before the type.

firstName: string;
lastName?: string;

Following TypeScript posts may help your better understand TypeScript

Published by


A developer,teacher and a blogger obsessed with Python,Dart and open source world from India

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.