Lesson
built-in-directives
This lesson teaches Built-in directives: the concepts, APIs, and habits you need before advancing in Angular.
Directives extend HTML in 1.x—read link/compile when debugging DOM behavior.
You will apply Built-in directives 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.
Structural directives like *ngIf and *ngFor need CommonModule in standalone components.
Import [Ng.CommonModule] in standalone @Component when using *ngIf or *ngFor.
Can you explain this lesson in 30 seconds without reading notes?
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