Working on an Angular 11 project using Typescript with Strict Mode, I encountered the following issue:
export class AvatarComponent {
@Input() user: UserModel = null;
}
This resulted in a compilation error:
Type 'null' is not assignable to type 'UserModel'.
The UserModel class is defined as:
export class UserModel {
id?: number;
name?: string;
}
How can I properly set the variable type of user to UserModel while allowing it to be null?
It seems like this solution should work
export class AvatarComponent {
@Input() user = <UserModel>null;
}
https://stackblitz.com/edit/angular-ivy-7f6obj?file=src%2Fapp%2Fapp.component.ts
Setting null in your code:
export class AvatarComponent {
@Input() user: UserModel | null = null;
}
To set undefined:
export class AvatarComponent {
@Input() user: UserModel;
}
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