From 9a91ffbbdeca0f82e496c5f6b095c863ca778c8a Mon Sep 17 00:00:00 2001
From: Shahid Shaikh <rwtc66@gmail.com>
Date: Fri, 19 Aug 2016 21:30:11 +0530
Subject: [PATCH] doc: add es6 code example in util.md

Added class/extends example to util.md

PR-URL: https://github.com/nodejs/node/pull/8183
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Yorkie Liu <yorkiefixer@gmail.com>
Reviewed-By: Robert Jefe Lindstaedt <robert.lindstaedt@gmail.com>
---
 doc/api/util.md | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/doc/api/util.md b/doc/api/util.md
index 5b59824b6255fe..d183bfec595d87 100644
--- a/doc/api/util.md
+++ b/doc/api/util.md
@@ -165,6 +165,30 @@ stream.on('data', (data) => {
 stream.write('It works!'); // Received data: "It works!"
 ```
 
+ES6 example using `class` and `extends`
+
+```js
+const util = require('util');
+const EventEmitter = require('events');
+
+class MyStream extends EventEmitter {
+  constructor() {
+    super();
+  }
+  write(data) {
+    this.emit('data', data);
+  }
+}
+
+const stream = new MyStream();
+
+stream.on('data', (data) => {
+  console.log(`Received data: "${data}"`);
+});
+stream.write('With ES6');
+
+```
+
 ## util.inspect(object[, options])
 
 * `object` {any} Any JavaScript primitive or Object.