How to Check String is Empty or Not in Dart (Null Safety)? Last Updated : 09 Aug, 2021 Improve Improve Like Article Like Save Share Report 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. 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 Like Article Suggest improvement Previous Fallthrough Condition in Dart Next Dart - Collections Share your thoughts in the comments Add Your Comment Please Login to comment...