Improved the implementation of the "isNotEmpty" property in the String+Empty extension.

Sources/Core/Extensions/String+Empty.swift

@@ -12,17 +12,14 @@
 
 public extension String {
     
-    // MARK: Properties
+    // MARK: Constants
     
-    /// Represents an empty string.
+    /// A string that represents an empty string.
     static let empty = ""
     
-    // MARK: Functions
-    
-    /// Checks whether a string is not empty.
-    /// - Returns: A boolean value that represents whether the string is not empty.
-    func isNotEmpty() -> Bool {
-        isEmpty == false
-    }
+    // MARK: Properties
+
+    /// A Boolean value indicating whether a string is not empty.
+    var isNotEmpty: Bool { !isEmpty }
     
 }