add jsdoc

examples/echo_server.ts

@@ -10,5 +10,6 @@ const listener = Deno.listen({ hostname, port });
 
 console.log(`Listen on ${hostname}:${port}`);
 for await (const conn of listener) {
+  console.log("Connection initiated");
   Deno.copy(conn, conn);
 }

examples/hello.ts

@@ -1,6 +1,16 @@
 // Library exporting `sayHello` function
 
-const capitalize = (word: string) =>
+/**
+ * Title case the given word. First character uppercase and the rest lowercase.
+ * @param {string} word 
+ * @returns {string} Capitalized word. 
+ */
+const capitalize = (word: string): string =>
   `${word.charAt(0).toUpperCase()}${word.toLowerCase().slice(1)}`;
 
-export const sayHello = (name: string) => `Hello ${capitalize(name)}`;
+/**
+ * Greets the named user after name capitalization
+ * @param {string} name  
+ * @returns {string} Greeting to the user 
+ */
+export const sayHello = (name: string): string => `Hello ${capitalize(name)}`;

index.ts

@@ -3,6 +3,7 @@ import { serve } from "https://deno.land/std@0.87.0/http/server.ts";
 const s = serve({ port: 8000 });
 
 console.log("http://localhost:8000/");
+
 for await (const req of s) {
   req.respond({ body: "Hello, World\n" });
 }