Question

How to add element to set in Dart

Answer 1

void main() {
    var st = {'dart', 'c', 'c++', 'java', 'python'};
    
    st.add('c#');
    st.add('c');
    st.add('c');
    
    print(st);
}




/*
run:

{dart, c, c++, java, python, c#}

*/

 

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Answer 2

void main() {
    var st = {'dart', 'c', 'c++', 'java', 'python'};
    
    if (st.add('c#')) {
        print('Element added');
    } else {
        print('Element is in the set');
    }
    
    print(st);
}




/*
run:

Element added
{dart, c, c++, java, python, c#}

*/

 

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Answer 3

void main() {
    var st = {'dart', 'c', 'c++', 'java', 'python'};
    
    if (st.add('c')) {
        print('Element added');
    } else {
        print('Element is in the set');
    }
    
    print(st);
}




/*
run:

Element is in the set
{dart, c, c++, java, python}

*/

 

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