chapter 03: splitting interfaces in order to avoid to need to throw a…

…n error or not make something if some user uses changeOwner in a class that not have implementation

chapter-03-the-liskov-substitution-principle/refactor/dropboxFile.js

@@ -0,0 +1,25 @@
+/**
+ * In order to improve the understanding of this code,
+ * this file it is supposing to implement the interface FileWithOwnerInterface
+ *
+ * interface FileInterface {
+ *  function rename(name);
+ * }
+ *
+ *
+ * interface FileWithOwnerInterface extends FileInterface {
+ *  function rename(name);
+ * }
+ *
+ * Quack Quack Quack 🦆 typing :D
+ */
+
+function dropboxFile() {
+    function rename(name) {}
+
+    return {
+        rename,
+    };
+}
+
+module.exports = dropboxFile;

chapter-03-the-liskov-substitution-principle/refactor/localFile.js

@@ -0,0 +1,27 @@
+/**
+ * In order to improve the understanding of this code,
+ * this file it is supposing to implement the following interface:
+ *
+ * interface FileInterface {
+ *  function rename(name);
+ *  function changeOwner(user, group);
+ * }
+ *
+ *
+ * Quack Quack Quack 🦆 typing :D
+ */
+
+function localFile() {
+    function rename(name) {}
+
+    function changeOwner(user, group) {
+        //make something
+    }
+
+    return {
+        rename,
+        changeOwner,
+    };
+}
+
+module.exports = localFile;