With Angular 19’s latest syntax, structural directives like @if, @for, and @switch replace the old *ngIf, *ngFor, and *ngSwitch.These updates make templates cleaner and more intuitive, while maintaining the power to dynamically shape the UI.The new control flow syntax enables showing, hiding, or repeating elements based on data, making the templates feel more like familiar logic.Example of using @if, @for, and @switch in an Angular 19 project to build a dynamic book library app.