Output events

Last reviewed Jun 1, 2026 Content v20260601

Track mode

client_angular

Means

In-browser Angular TS

Reading

~1 min

Level

intermediate

This lesson

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

Without Output events, you will struggle to read or extend Angular codebases and playground exercises.

You will apply Output events 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.

Outputs use @Output() EventEmitter or output() for child-to-parent events.

Important interview questions and answers

Q: Why does this matter?
A: Outputs use @Output() EventEmitter or output() for child-to-parent events.

Self-check

Summarize Output events in one sentence.
What would you try next in the playground?

Tip: Name outputs after user actions (save, selected) and keep payloads typed.

Playground

Runs in your browser in a sandboxed frame. Backend runners appear when this track’s profile allows them.

Discussion

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Starter discussion topics

output() event you used?
Parent handler?

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