Question

How to use try catch throw in Dart

Answer 1

void PrintString(str) {
    if (str.length > 0) {
        print(str);
    } else {
        throw new Exception('String is empty');
    }
}
 
void main() {
    var s = '';
    
    try {
        PrintString(s);
    } catch (e) {
        print('Exception: $e');
    }
    
    print('End main');
}




/*
run:

Exception: Exception: String is empty
End main

*/

 

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