Map isNotEmpty

Map isNotEmpty property returns a boolean value of true if this Map is not empty, or false if this Map is empty.

Syntax

The syntax to check if the Map myMap is not empty is

myMap.isNotEmpty

Examples

Check if Map is Not Empty

In the following Dart Program, we take a Map myMap with three key-value pairs, and programmatically check if this Map is not empty, using Map.isNotEmpty property.

main.dart

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void main() {
    var myMap = {'apple': 25, 'banana': 10, 'cherry': 6};
    if ( myMap.isNotEmpty ) {
        print('Map is not empty.');
    } else {
        print('Map is empty.');
    }
}

Output

Map is not empty.

Conclusion

In this Dart Tutorial, we learned how to check if given Map is not empty, using Map.isNotEmpty property.