Recently (Angular component with varying appearance) I wrote how to use the same
<ng-content> twice in a switch case.
Today I hit upon explanation of this fact in a GitHub issue (https://github.com/angular/angular/issues/22972) and I found another problem.
Namely, it is not possible to display at the same time twice the same
<ng-content> even if it is packed inside a
<ng-template>. Therefore the following example will not work:
As a result, only the first button will be displayed and the contents of the second button will be blank.
Interestingly, the same example but with
<ng-template> not referring to a
<ng-content>, will work:
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It appears that
<ng-content> may be displayed only once, but there is no limit on displaying multiple