Optional Default Parameters

17_default_parameters.dart

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+
+// Optional Default Parameters
+
+void main() {
+
+	findVolume(10);     // Default value comes into action
+	print("");
+
+	findVolume(10, breadth: 5, height: 30);     // Overrides the old value with new one
+	print("");
+
+	findVolume(10, height: 30, breadth: 5);     // Making use of Named Parameters with Default values
+}
+
+
+int findVolume(int length, {int breadth = 2, int height = 20}) {
+
+	print("Lenght is $length");
+	print("Breadth is $breadth");
+	print("Height is $height");
+
+	print("Volume is ${length * breadth * height}");
+}