From 4ce505b125950521860f0d2170409719927f3f85 Mon Sep 17 00:00:00 2001
From: Elizabeth Hunt <elizabeth.hunt@simponic.xyz>
Date: Tue, 24 Oct 2023 22:28:40 -0600
Subject: initial turing machine

---
 turing-machine/js/observable.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 turing-machine/js/observable.js

(limited to 'turing-machine/js/observable.js')

diff --git a/turing-machine/js/observable.js b/turing-machine/js/observable.js
new file mode 100644
index 0000000..1299fc6
--- /dev/null
+++ b/turing-machine/js/observable.js
@@ -0,0 +1,14 @@
+class Observable {
+  constructor() {
+    this.observers = [];
+  }
+  subscribe(f) {
+    this.observers.push(f);
+  }
+  unsubscribe(f) {
+    this.observers = this.observers.filter((subscriber) => subscriber !== f);
+  }
+  notify(data) {
+    this.observers.forEach((observer) => observer(data));
+  }
+}
-- 
cgit v1.2.3-70-g09d2