From 4a6d1b49ffc13e82019aa7cbe699133a00e16d67 Mon Sep 17 00:00:00 2001
From: The Coding Aviator <34807532+thecodingaviator@users.noreply.github.com>
Date: Thu, 18 Oct 2018 15:48:05 +0530
Subject: [PATCH] Update index.md (#19715)

---
 .../react/use-the-lifecycle-method-componentwillmount/index.md  | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/guide/english/certifications/front-end-libraries/react/use-the-lifecycle-method-componentwillmount/index.md b/guide/english/certifications/front-end-libraries/react/use-the-lifecycle-method-componentwillmount/index.md
index b260882d1f5..10a6fd2a36c 100644
--- a/guide/english/certifications/front-end-libraries/react/use-the-lifecycle-method-componentwillmount/index.md
+++ b/guide/english/certifications/front-end-libraries/react/use-the-lifecycle-method-componentwillmount/index.md
@@ -23,3 +23,5 @@ componentWillMount() {
   console.log('Component being mounted');
 }
 ```
+
+##### Note: The ``` componentWillMount ``` Lifecycle method has been deprecated as of version 17, and does not work on later versions. [(Source)](https://reactjs.org/docs/react-component.html)