ArgumentError constructor
- [dynamic message]
Creates an error with message
describing the problem with an argument.
Existing code may be using message
to hold the invalid value. If the message
is not a String, it is assumed to be a value instead of a message.
Implementation
@pragma("vm:entry-point") ArgumentError([this.message]) : invalidValue = null, _hasValue = false, name = null;
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https://api.dart.dev/stable/2.13.0/dart-core/ArgumentError/ArgumentError.html