adding exercies for steps 2-1 and 2-2

step2-01/demo/src/modules/default.ts

@@ -0,0 +1,3 @@
+export default class DefaultClass {
+  hello = 'world';
+}

step2-01/demo/src/modules/index.ts

@@ -0,0 +1,19 @@
+import { namedConst, namedFn, namedObj, namedConstBracket, namedConst as c } from './named';
+import * as named from './named';
+
+// Print out the exports
+console.log(namedConst);
+console.log(c);
+console.log(namedFn());
+console.log(namedObj);
+console.log(namedConstBracket);
+
+// Print out exports through module level import
+console.log(named.namedConst);
+console.log(named.namedFn());
+console.log(named.namedObj);
+console.log(named.namedConstBracket);
+
+import DefaultClass from './default';
+
+console.log(new DefaultClass().hello);

step2-01/demo/src/modules/named.ts

@@ -0,0 +1,12 @@
+export const namedConst = 5;
+
+export function namedFn() {
+  return 5;
+}
+
+export const namedObj = {
+  hello: 'world'
+};
+
+const namedConstBracket = 10;
+export { namedConstBracket };