The intersection() method gets the common elements of two Set objects.
This method finds the elements present in both sets, creates them as a new set, and returns them.
Set<E> intersection(Set<E> other)
This method takes a Set object as an argument.
A new Set containing common elements between two Set objects is returned.
The code demonstrates the use of the intersection() method:
import 'dart:collection';void main() {//create a new LinkedHashSet which can have int type elementsLinkedHashSet set1 = new LinkedHashSet<int>();// add three elements to the set1set1.add(1);set1.add(2);set1.add(3);print('The set1 is $set1');//create another LinkedHashSet which can have int type elementsLinkedHashSet set2 = new LinkedHashSet<int>();// add three elements to the setset2.add(2);set2.add(3);set2.add(4);print('The set2 is $set2');// the common elements on set1 and set2 isSet<int> commonElements = set1.intersection(set2);print('The common elements is $commonElements');}
Line 1: We import the collection library.
Line 4: We create a new LinkedHashSet object named set1.
Lines 7-9: We add three new elements to set1. Now, set1 is {1,2,3}.
Line 13: We create a new LinkedHashSet object named set2.
Lines 16-18: We add three new elements to the set2. Now, set2 is {2,3,4}.
Line 23: We use the intersection() method to get the common elements between set1 and set2. In our case, the common elements between the two sets are 2 and 3. Hence, a new Set containing elements 2 and 3 will be returned, {2,3}.