Extensions

String extensions

You can use orAnonymousUrl, orWhiteUrl, orBlackUrl to display anonymous, or white, black iamge when the string of the url is empty string.

Avatar(
    photoUrl: my!.photoUrl.orAnonymousUrl,
),

ifEmpty and or have same fuctionality that if the string is empty, it will use the parameter value. Note that it's not working if the string is null.