noSuchMethod() method

class A { 
   // Unless you override noSuchMethod, using a non-existent member results in a NoSuchMethodError. 
   void noSuchMethod(Invocation invocation) { 
      print('You tried to use a non-existent member: ' + '${invocation.memberName}'); 

To detect or react whenever code attempts to use a non-existent method or instance variable, you can override noSuchMethod().

Related concepts

noSuchMethod() — Structure map

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