Component inputs

Last reviewed May 28, 2026 Content v20260528

Track mode

client_angular

Means

In-browser Angular TS

Reading

~1 min

Level

intermediate

This lesson

This lesson teaches Component inputs: the concepts, APIs, and habits you need before advancing in Angular.

Without Component inputs, you will struggle to read or extend Angular codebases and playground exercises.

You will apply Component inputs in contexts like: Large Angular codebases, line-of-business apps, and teams standardized on TypeScript everywhere.

Write TypeScript with decorators, click Run—Angular 19 loads from CDN, use the Ng global and mountApp(Component) with selector app-root; printOutput feeds the terminal.

When you can explain the previous lesson's ideas without copying starter code.

Inputs use @Input() or input() signal inputs for parent-to-child data flow.

Important interview questions and answers

Q: Why does this matter?
A: Inputs use @Input() or input() signal inputs for parent-to-child data flow.

Self-check

Summarize Component inputs in one sentence.
What would you try next in the playground?

Challenge