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.
Read moreWhat is Dart VAR?
In Dart, The var keyword is used to declare a variable . The Dart compiler automatically knows the type of data based on the assigned to the variable because Dart is an infer type language.
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