Add Dart Map .entries documentation

Author: Morenazzo

content/dart/concepts/map/terms/entries/entries.md

@@ -0,0 +1,50 @@
+---
+Title: '.entries'
+Description: 'Returns an iterable collection containing all key-value pairs as MapEntry objects in a map.'
+Subjects:
+  - 'Computer Science'
+  - 'Code Foundations'
+Tags:
+  - 'Dart'
+  - 'Data Structures'
+  - 'Properties'
+CatalogContent:
+  - 'learn-dart'
+  - 'paths/computer-science'
+---
+
+In Dart, the **`.entries`** property returns an iterable collection containing all key-value pairs as `MapEntry` objects in a map. This allows you to iterate over both keys and values together.
+
+## Syntax
+
+```pseudo
+myMap.entries
+```
+
+- `myMap`: The map name that needs to be iterated.
+
+## Example
+
+The following example demonstrates the usage of the `.entries` property:
+
+```dart
+void main() {
+  Map<String, int> scores = {
+    'Alice': 95,
+    'Bob': 87,
+    'Charlie': 92
+  };
+
+  for (var entry in scores.entries) {
+    print('${entry.key}: ${entry.value}');
+  }
+}
+```
+
+The above example produces the following output:
+
+```shell
+Alice: 95
+Bob: 87
+Charlie: 92
+```