Repeat HTML element multiple times using ngFor based on a number

by 
<ng-container *ngFor="let _ of [].constructor(20)">🐱</ng-container>

generates 🐱🐱🐱🐱🐱🐱🐱🐱🐱🐱🐱🐱🐱🐱🐱🐱🐱🐱🐱🐱

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