cleanup

jrasmusson · Jul 15, 2022 · 1a1a172 · 1a1a172
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diff --git a/README.md b/README.md
@@ -6,6 +6,7 @@ A starter kit for those interested in iOS programming
 * [Arrays](https://github.com/jrasmusson/ios-starter-kit/blob/master/basics/Array/README.md)
 * [Dictionary Grouping](basics/DictionaryGrouping/README.md)
 * [Async](basics/Async/README.md)
+* [Actor](basics/Actor/README.md)
 * [Enums](https://github.com/jrasmusson/ios-starter-kit/blob/master/basics/Enums/README.md)
 * [Computed Properties](https://github.com/jrasmusson/ios-starter-kit/blob/master/swift/Computed-Properties.md)
 * [DateFormatter](swift/DateFormatter.md)

diff --git a/basics/Actor/README.md b/basics/Actor/README.md
@@ -0,0 +1,28 @@
+# Actor
+
+`Actors` serialize access to mutable state.
+
+```swift
+actor Counter {
+	var value = 0
+
+	func increment() -> Int [
+		value = value + 1
+		return value
+	}
+}
+
+let counter = Counter()
+Task.detached {
+	print(counter.increment()) // 2
+}
+
+Task.detached {
+	print(counter.increment()) // 1
+}
+```
+
+
+### Links that help
+
+- [WWDC 2022 Protect mutable state with Swift Actors](https://developer.apple.com/videos/play/wwdc2021/10133)