Improve list display

src/value/list.rs

@@ -1,5 +1,6 @@
 use std::{
     cmp::Ordering,
+    fmt::{self, Display, Formatter},
     sync::{Arc, RwLock, RwLockReadGuard, RwLockWriteGuard},
 };
 
@@ -61,3 +62,21 @@ impl PartialOrd for List {
         Some(self.cmp(other))
     }
 }
+
+impl Display for List {
+    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+        let items = self.items();
+
+        write!(f, "[")?;
+
+        for (index, value) in items.iter().enumerate() {
+            write!(f, "{value}")?;
+
+            if index != items.len() - 1 {
+                write!(f, ", ")?;
+            }
+        }
+
+        write!(f, "]")
+    }
+}

src/value/mod.rs

@@ -489,13 +489,7 @@ impl Display for Value {
                     write!(f, "none")
                 }
             }
-            Value::List(list) => {
-                write!(f, "[")?;
-                for value in list.items().iter() {
-                    write!(f, " {value} ")?;
-                }
-                write!(f, "]")
-            }
+            Value::List(list) => write!(f, "{list}"),
             Value::Map(map) => write!(f, "{map}"),
             Value::Function(function) => write!(f, "{function}"),
         }