synchronous fetch with async-await

Author: rohan-paul

Javascript/IIFE renamed to Javascript/IIFE.md

@@ -0,0 +1,21 @@
+### Transform the following code with
+
+```js
+fetch("https://api.com/values/1")
+  .then(response => response.json())
+  .then(json => console.log(json));
+```
+
+Need to wrap it inside an async function to make the async-await mechanism work.
+
+```js
+const request = async () => {
+  const response = await fetch("https://api.com/values/1");
+  const json = await response.json();
+  console.log(json);
+};
+
+request();
+```
+
+In the first line, we make a GET request to https://api.com/values/1. Instead of continuing to the next line, we wait for the request to finish, hence await. When it finishes, it passes the resolved value to the response variable.