lesson6

Author: codebryo

lesson6.js

@@ -0,0 +1,21 @@
+// Session class that leverages Date
+class Session {
+  constructor() {
+    this.lastUpdate = Date.now()
+  }
+
+  touch() {
+    this.lastUpdate = Date.now()
+  }
+}
+
+// A potential implementation to watch the Date Object
+function spyOn(Object, method) { /*... */ }
+
+// A common way of using a spy
+const dateSpy = spyOn(Date, 'now')
+
+Date.now()
+
+// A commong way of checking the spy
+console.log(dateSpy.called.length > 0)