Such a destructuring notation is considered a constraint and ngulare?

Question

JavaScript

<div *ngFor="let [lang, value] of langMap.entries()">foo</div>

Answer 1

1. destructuring assignments in struct microsyntax doesn't work https://github.com/angular/angular/issues/27555
2. it's better to write like this

<div *ngFor="let entry of obj | keyvalue">
  {{ entry.key }} {{ entry.value }}
</div>