How to check if a set is empty in Swift? Last Updated : 02 Jun, 2022 Comments Improve Suggest changes Like Article Like Report Swift supports the different types of generic collections and set is one of them. A set is used to store unordered values of the same type. It means you are not allowed to keep different types in the set. You can use a set instead of an array if the order of the values is not defined or you want to store unique values. It doesn't keep duplicate values, it always keeps unique values in it. It generally uses a hash table to store the elements. We can also check if the given set is empty or not with the help of the isEmpty property. This property returns true if the given set is empty or returns false if the given set contains some elements. Syntax: setName.isEmpty Here, setName is the object of the set class. Return Value: This property will return true if the given set is empty or return false if the given set contains elements. Example 1: Swift // Swift program to check if the given set is empty or not import Swift // Creating an set of EmployeeSalary // Here the set is of int type var GEmpSalary: Set = [30000, 12200, 14000, 67800, 10000, 90000] // Checking the given set is empty or not // Using isEmpty property var result1 = GEmpSalary.isEmpty // Displaying the result print("Is the GEmpSalary is empty or not?", result1) // Creating an empty set of int type var GEmployee = [Int]() // Finding the total number var result2 = GEmployee.isEmpty // Displaying the result print("Is the GEmployee is empty or not?", result2) Output: Is the GEmpSalary is empty or not? false Is the GEmployee is empty or not? trueExample 2: Swift // Swift program to check if the given set is empty or not import Swift // Creating an set of Authors Name // Here the set is of string type var GName: Set = ["Minaxi", "Prita", "Mona", "Guri", "Om", "Rohit"] // Checking the given set is empty or not // Using isEmpty property if (GName.isEmpty == true) { print("Yes! the given Set is empty") } else { print("No! the given Set is not empty") } Output: No! the given Set is not empty Comment More infoAdvertise with us A ankita_saini Follow Improve Article Tags : Swift Swift-Set Swift-Functions Explore Swift Tutorial 10 min read Swift IntroductionSwift - Hello World Program 2 min read Swift - Basic Syntax 5 min read Swift - Keywords 4 min read Swift - Literals 10 min read Swift - Constants, Variables & Print function 2 min read Swift - Operators 8 min read Swift Data TypesSwift - Data Types 5 min read Swift - Integer, Floating-Point Numbers 2 min read Strings in Swift 8 min read String Functions and Operators in Swift 10 min read How to Concatenate Strings in Swift? 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