Add static .is() function for comparison of custom JavaScript classes

lib/src/fnc/script/classes/duration.rs

@@ -26,6 +26,10 @@ pub mod duration {
 		pub fn value(&self) -> &str {
 			&self.value
 		}
+		// Compare two Duration instances
+		pub fn is(a: &Duration, b: &Duration, args: Rest<Value>) -> bool {
+			a.value == b.value
+		}
 		/// Convert the object to a string
 		pub fn toString(&self, args: Rest<Value>) -> String {
 			self.value.to_owned()

lib/src/fnc/script/classes/record.rs

@@ -33,6 +33,10 @@ pub mod record {
 		pub fn id(&self) -> &str {
 			&self.id
 		}
+		// Compare two Record instances
+		pub fn is(a: &Record, b: &Record, args: Rest<Value>) -> bool {
+			a.tb == b.tb && a.id == b.id
+		}
 		/// Convert the object to a string
 		pub fn toString(&self, args: Rest<Value>) -> String {
 			format!("{}:{}", self.tb, self.id)

lib/src/fnc/script/classes/uuid.rs

@@ -26,6 +26,10 @@ pub mod uuid {
 		pub fn value(&self) -> &str {
 			&self.value
 		}
+		// Compare two Uuid instances
+		pub fn is(a: &Uuid, b: &Uuid, args: Rest<Value>) -> bool {
+			a.value == b.value
+		}
 		/// Convert the object to a string
 		pub fn toString(&self, args: Rest<Value>) -> String {
 			self.value.to_owned()