Dart compare two strings return false

Question

Im new to dart and have a problem during building my Flutter application.

I have a firestore database as a backend and im getting data from there.

When i want to compare part of the data called status with the text 'CREATED', using == comparator, dart will return false.

Can someone explain why and how to check it properly?

rideObject is a Map

Update:

Here is the function that has the condition in it:

Widget _getPage() {
 if (rideObject == null) {
      return OrderRidePage(
          address: address,
          ridesReference: reference,
          setRideReference: this._setRideReference);
    } else {
      print(rideObject['status']);
      if (rideObject['status'] == "CREATED") {
        return LoadingPage(
            removeRideReference: this._removeRideReference,
            rideReference: rideReference);
      } else {
        return RidePage(
            address: address,
            ridesReference: reference,
            setRideReference: _setRideReference);
      }
    }
  }

The print statement returns to output:

I/flutter (15469): CREATED

Here you can see the structure of the rideObject

Funnily enough, the rideObject["status"] is String type as shown in here in console:

rideObject["status"] is String
true
"CREATED" is String
true
rideObject["status"]
"CREATED"
rideObject["status"] == "CREATED"
false

Answer 1

The String you got from your server is probably encoded and contains special character which you can't see, try to compare the hex values of both of the strings, and then replace all the special characters from the String returned by the server.

Using this, you can see the actual non visible difference between the two strings:

var text1 = utf8.encode(hardcodedText).toString();
var text2 = utf8.encode(textFromServer).toString();

Answer 2

If both are really strings, you can use "compareTo" which will return 0 if both are equal.

if(str1.compareTo(str2)==0){
}

It is explained here: https://www.tutorialspoint.com/dart_programming/dart_programming_string_compareto_method.htm