Reusable Child Component with @Input/@Output (Two-way Binding)

Challenge summary

Expose a value input and a valueChange output to support two-way binding, and keep the child component stateless so the parent owns the source of truth.

What you'll practice

• Child must emit changes via @Output so the parent can React.
• UI should include an input + a button inside the child. Child emits updated value when user edits input or presses button.
• Parent can also update the value programmatically and child reflects it.

What Premium unlocks

Premium unlocks the runnable workspace, behavioral checks, implementation walkthrough, and edge-case discussion.