Question

How to check variable type during runtime in Dart

Answer 1

main() {
    var n = 3874;
    
    print(n is int);
    print(n is! int);
}



/*
run:

true
false

*/

 

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Answer 2

main() {
    var n = 3.14;
    
    print(n is double);
    print(n is! double);
}



/*
run:

true
false

*/

 

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Answer 3

main() {
    var s = "dart";
    
    print(s is String);
    print(s is! String);
}



/*
run:

true
false

*/

 

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