learn-typescript: indexable types

typescript/module01.html

@@ -8,6 +8,6 @@
     <h1>Test JavaScript</h1>
     <p id="date"></p>
     <p>This page calls the script module03.js and is used for testing.</p>
-    <script src="./build/module04.js"></script>
+    <script src="./build/module06.js"></script>
   </body>
 </html>

typescript/module06.ts

@@ -0,0 +1,18 @@
+interface Sundae extends IceCream {
+    sauce: 'chocolate' | 'caramel' | 'strawberry';
+    nuts?: boolean;
+    whippedCream?: boolean;
+    instructions?: boolean;
+}
+
+
+interface IceCreamArray {
+    [index: number]: string;
+}
+
+let myIceCreamList: IceCreamArray;
+
+myIceCreamList = ['chocolate', 'caramel', 'strawberry'];
+
+let myStr: string = myIceCreamList[0];
+console.log({ myStr });