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How to Check String is Empty or Not in Dart (Null Safety)?

Last Updated : 07 Apr, 2025
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We can check a string is empty or not by the String Property isEmpty. If the string is empty then it returns True if the string is not empty then it returns False.

Syntax:

String.isEmpty 
  • Return : True or False.

Image Representation:

isEmpty


Example 1:

Dart
// main function start void main() {   // initialise a string st  String? st = "";    // print string is empty or not  print(st.isEmpty);  } 


Output:

true


Example 2:

Dart
// main function start void main() {  // initialise a string st  String? st = "Geeksforgeeks";    // print string is empty or not  print(st.isEmpty);  } 


Output:

false

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