From 22b72985429ee79e882497b6f300879122f36d30 Mon Sep 17 00:00:00 2001
From: Michael Telatynski <7t3chguy@gmail.com>
Date: Tue, 23 Jan 2018 20:28:39 +0000
Subject: [PATCH] add comments

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>
---
 src/components/views/elements/SyntaxHighlight.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/components/views/elements/SyntaxHighlight.js b/src/components/views/elements/SyntaxHighlight.js
index a7d8f894f4..82b5ae572c 100644
--- a/src/components/views/elements/SyntaxHighlight.js
+++ b/src/components/views/elements/SyntaxHighlight.js
@@ -30,10 +30,14 @@ export default class SyntaxHighlight extends React.Component {
         this._ref = this._ref.bind(this);
     }
 
+    // componentDidUpdate used here for reusability
+    // componentWillReceiveProps fires too early to call highlightBlock on.
     componentDidUpdate() {
         if (this._el) highlightBlock(this._el);
     }
 
+    // call componentDidUpdate because _ref is fired on initial render
+    // which does not fire componentDidUpdate
     _ref(el) {
         this._el = el;
         this.componentDidUpdate();