What is Dart?
Dart is a general-purpose, object-oriented programming language with C-style syntax.What is Dart?
Dart is a general-purpose, object-oriented programming language with C-style syntax.what means ?? in dart
// The ?? double question mark operator means "if null"
String a = b ?? 'hello'; // This means a equals b, but if b is null then a equals 'hello'. It is like || in JavaScript
b ??= 'hello'; // If b is null then set it equal to 'hello'. Otherwise, don't change itCopyright © 2021 Codeinu
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