How to Check String is Empty or Not in Dart (Null Safety)? Last Updated : 07 Apr, 2025 Comments Improve Suggest changes 5 Likes Like 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.Image Representation: Example 1: Dart // main function start void main() { // initialise a string st String? st = ""; // print string is empty or not print(st.isEmpty); } Output:trueExample 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 Create Quiz Comment A avengerjanus123 Follow 5 Improve A avengerjanus123 Follow 5 Improve Article Tags : Dart Dart-String Explore BasicsIntroduction to Dart Programming Language 4 min read Dart SDK Installation 4 min read Dart - Comments 2 min read Dart - Variables 5 min read Operators in Dart 11 min read Dart - Standard Input Output 3 min read Data TypesDart - Data Types 8 min read Basics of Numbers in Dart 6 min read Strings in Dart 6 min read Dart - Sets 6 min read Dart Programming - Map 7 min read Queues in Dart 3 min read Data Enumeration in Dart 3 min read Control FlowDart Programming - If Else Statement (if , if..else, Nested if, if-else-if) 4 min read Switch Case in Dart 2 min read Dart - Loops 4 min read Dart - Loop Control Statements (Break and Continue) 4 min read Labels in Dart 2 min read Key FunctionsDart - Functions 4 min read Different Types of Functions in Dart 4 min read Dart - Anonymous Functions 2 min read Dart - main() Function 2 min read Dart - Common Collection Methods 2 min read How to Exit a Dart Application Unconditionally? 2 min read Dart - Getters and Setters 3 min read Object-Oriented ProgrammingDart - Classes And Objects 4 min read Constructors in Dart 5 min read Super Constructor in Dart 2 min read Dart - this keyword 2 min read Dart - Static Keyword 3 min read Dart - Super and This keyword 4 min read Dart - Concept of Inheritance 5 min read Instance and class methods in Dart 3 min read Method Overriding in Dart 3 min read Getter and Setter Methods in Dart 2 min read Abstract Classes in Dart 4 min read Dart - Builder Class 4 min read Concept of Callable Classes in Dart 4 min read Interface in Dart 3 min read Dart - extends Vs with Vs implements 4 min read Dart UtilitiesDart - Date and Time 3 min read Using await async in Dart 4 min read Dart - Type System 3 min read Generators in Dart 2 min read Dart ProgramsHow to Combine Lists in Dart? 3 min read Dart - Finding Minimum and Maximum Value in a List 5 min read Dart - Splitting of String 1 min read How to Append or Concatenate Strings in Dart? 2 min read How to Find the Length of a String in Dart? 1 min read Dart - Sort a List 2 min read Dart - String toUpperCase() Function with Examples 1 min read Dart - Convert All Characters of a String in Lowercase 1 min read How to Replace a Substring of a String in Dart? 2 min read How to Check String is Empty or Not in Dart (Null Safety)? 1 min read Advance ConceptsException Handling in Dart 3 min read Assert Statements in Dart 3 min read Fallthrough Condition in Dart 3 min read Concept of Isolates in Dart 2 min read Typedef in Dart 3 min read Dart - URIs 2 min read Dart - Collections 7 min read Dart - Basics of Packages 2 min read Dart - String codeUnits Property 1 min read HTML Document Object Model and Dart Programming 3 min read Like