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Dart New Set and Map

Creating a new Set


Sets can be created via the constructor:

var ingredients = new Set();
ingredients.addAll(['gold', 'titanium', 'xenon']);

Creating a new Map


Maps can be created in multiple ways.

Using the constructor, you can create a new map as follow:

var searchTerms = new Map();

Types for the key and value can also be defined using generics:

var nobleGases = new Map<int, String>();
var nobleGases = <int, String>{};

Maps can otherwise be created using the map literal:

var map = {
 "key1": "value1",
 "key2": "value2"
};


Conclusion

In this page (written and validated by ) you learned about Dart New Set and Map . What's Next? If you are interested in completing Dart tutorial, your next topic will be learning about: Dart Map each element in the collection.



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