Feat/implement safe collection (#2)

jeonghi · web-flow · commit 69c11e2d4785 · 2024-07-02T11:40:28.000+09:00
* [Add] allow collection subscript nil
diff --git a/Sources/LodyExtensions/Foundation/Collection/Collection+Ex.swift b/Sources/LodyExtensions/Foundation/Collection/Collection+Ex.swift
@@ -11,4 +11,8 @@ public extension Collection where Element: Hashable {
     let unique = Set(self)
     return Array(unique)
   }
+  
+  subscript (safe index: Index) -> Element? {
+    return indices.contains(index) ? self[index] : nil
+  }
 }

Original file line number	Diff line number	Diff line change
`@@ -11,4 +11,8 @@ public extension Collection where Element: Hashable {`
`11`	`11`	`let unique = Set(self)`
`12`	`12`	`return Array(unique)`
`13`	`13`	`}`
	`14`	`+`
	`15`	`+ subscript (safe index: Index) -> Element? {`
	`16`	`+ return indices.contains(index) ? self[index] : nil`
	`17`	`+ }`
`14`	`18`	`}`