add description about observer pattern

2025-07-05 16:00:50 +07:00 · 2021-05-06 08:56:57 -05:00
parent c1b214bd83
commit c4696e7e2f
1 changed files with 2 additions and 0 deletions
--- a/README.md
+++ b/README.md
@ -92,6 +92,8 @@ class SingletonPattern {

 ### Observer Pattern

+The observer pattern lets one object observe changes on another object. Apple added language-level support for this pattern in Swift 5.1 with the addition of Publisher in the Combine framework.
+

 ## Code Structuring