Lists with @for in Angular
Angular interview exercise on Components & templates, difficulty 1 of 3. Solve it in the editor beside a worked example, or cold in Interview mode with the example hidden; the tests run the moment you do.
Render `tracks` as a <ul>: one <li> per track reading "1. Intro (92s)" (the position from 1, then the title and the seconds), tracked by id. The last <li> gets the class "last". When there are no tracks, show <p class="empty">No tracks yet</p> instead.
Each exercise pairs a worked example with a twin problem to solve in a real editor; the tests run the moment you do. Interview mode hides the example: solve it from memory, without the hint or the solution, and it counts as solved cold. Progress is saved in your browser, and in your account if you sign in.