From 3853921d5f22e8d35fa19f9039774ac5e7dca5fd Mon Sep 17 00:00:00 2001
From: Jecyu <jecyu.lin@gmail.com>
Date: Tue, 8 Sep 2020 09:21:24 +0800
Subject: [PATCH] Update recordAnimationFrames.md

---
 snippets/recordAnimationFrames.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/snippets/recordAnimationFrames.md b/snippets/recordAnimationFrames.md
index 531c1f9fe..d505a5aa6 100644
--- a/snippets/recordAnimationFrames.md
+++ b/snippets/recordAnimationFrames.md
@@ -12,13 +12,15 @@ Omit the second argument, `autoStart`, to implicitly call `start` when the funct
 
 ```js
 const recordAnimationFrames = (callback, autoStart = true) => {
-  let running = true,
+  let running = false,
     raf;
   const stop = () => {
+    if (!running) return;
     running = false;
     cancelAnimationFrame(raf);
   };
   const start = () => {
+    if (running) return;
     running = true;
     run();
   };