angular - Elvis Operator with *ngFor -

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is legal use elvis operator *ngfor (place question mark after users, since array might null @ moment)?

<tr *ngfor="#user of users?">   <td> {{user.username}}</td> </tr

if array users null, elvis operator in {{user.username}} redundant because <td>...</td> never gets created , {{user.username}} isn't evaluated @ all.


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