Lesson 04 · 10 min
@if and @for
A piece of the template is either there or not. A list is @for with track by id.
10 minLesson 4 of 8Practice includedAsk AI on any point
In new templates: @if (user) { … } @else { … } and @for (item of items; track item.id) { … }. The old *ngIf / *ngFor are still around. track is like key in React: without a stable id the list "drifts" on insertion.
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