flutter evaluate if var is integer or string

Question

i need to evaluate what type is a variable to make some switch,there are any way to evaluate a varible to get his type, like val() or something similar. i need to do something for integers and other for string.

i alreaedy try to using a switch, like this,

 switch (selector) { case  int :   print('value is a integer');     break; case  String:     print('value is a String');    break; 

}

but how i do this, if switch can allow compare mixed type of vars?

thank you

Answer 1

You can use the keyword is or switch over runtimeType :

dynamic foo = 42; if (foo is int) {   print("Hello"); } switch (foo.runtimeType) {   case int: {     print("World");   } } 

Consider using is instead of directly using runtimeType. As is works with subclasses. While using runtimeType is a strict comparison.