ProgramGuruTo filter items of a set based on a condition in Dart, you can use the where method to apply a filtering predicate and create a new set from the filtered items.
In this example,
numberSet using the Set type, which contains integer values 1, 5, 10, 15, and 20.where method on numberSet to filter the numbers greater than 5 using a lambda function as the filtering condition.filteredSet using the Set constructor with the filtered items from the where method.filteredSet and print each filtered item to the console.void main() {
var numberSet = {1, 5, 10, 15, 20};
var filteredSet = numberSet.where((num) => num > 5).toSet();
filteredSet.forEach((num) => print(num));
}10 15 20
In this example,
stringSet using the Set type, which contains string values 'apple', 'banana', 'cherry', 'date', and 'grape'.where method on stringSet to filter the strings containing the letter 'a' using a lambda function as the filtering condition.filteredStringSet using the Set constructor with the filtered items from the where method.filteredStringSet and print each filtered string to the console.void main() {
var stringSet = {'apple', 'banana', 'cherry', 'date', 'grape'};
var filteredStringSet = stringSet.where((str) => str.contains('a')).toSet();
filteredStringSet.forEach((str) => print(str));
}apple banana grape
In this tutorial, we learned How to Filter Items of a Set based on a Condition in Dart language with well detailed examples.