What is Dart null safety?

The Dart language now supports sound null safety! When you opt into null safety, types in your code are non-nullable by default, meaning that variables can’t contain null unless you say they can . With null safety, your runtime null-dereference errors turn into edit-time analysis errors.

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Is Dart a keyword?

Dart Keywords are the reserve words that have special meaning for the compiler . It cannot be used as the variable name, class name, or function name. Keywords are case sensitive; they must be written as they are defined.

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