From 95485ba4010b86ab277993d12cdd91c79230c949 Mon Sep 17 00:00:00 2001
From: yoyo837 <yoyo837@hotmail.com>
Date: Wed, 27 May 2020 16:30:36 +0800
Subject: [PATCH 1/3] add raf util

---
 src/raf.ts | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 src/raf.ts

diff --git a/src/raf.ts b/src/raf.ts
new file mode 100644
index 00000000..3f6f4c5d
--- /dev/null
+++ b/src/raf.ts
@@ -0,0 +1,14 @@
+let raf = (fn: () => void) => +setTimeout(fn, 16);
+let caf = (num: number) => clearTimeout(num);
+
+if (typeof window !== 'undefined') {
+  raf = requestAnimationFrame;
+  caf = cancelAnimationFrame;
+}
+
+// Support call raf with delay specified frame
+export default function wrapperRaf(callback: () => void): number {
+  return raf(callback);
+}
+
+wrapperRaf.cancel = caf;

From 03964d564ecf9a448da8a4ce3e091777f9b16e27 Mon Sep 17 00:00:00 2001
From: yoyo837 <yoyo837@hotmail.com>
Date: Wed, 27 May 2020 16:31:51 +0800
Subject: [PATCH 2/3] remove comment

---
 src/raf.ts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/raf.ts b/src/raf.ts
index 3f6f4c5d..84fad014 100644
--- a/src/raf.ts
+++ b/src/raf.ts
@@ -6,7 +6,6 @@ if (typeof window !== 'undefined') {
   caf = cancelAnimationFrame;
 }
 
-// Support call raf with delay specified frame
 export default function wrapperRaf(callback: () => void): number {
   return raf(callback);
 }

From 7ba9c8d3ebc9820779bd21c0e38a6ffec94c91b5 Mon Sep 17 00:00:00 2001
From: yoyo837 <yoyo837@hotmail.com>
Date: Wed, 27 May 2020 16:39:14 +0800
Subject: [PATCH 3/3] add test case

---
 tests/raf.test.js | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 tests/raf.test.js

diff --git a/tests/raf.test.js b/tests/raf.test.js
new file mode 100644
index 00000000..374053e5
--- /dev/null
+++ b/tests/raf.test.js
@@ -0,0 +1,19 @@
+import raf from '../src/raf';
+
+describe('raf', () => {
+  it('test Raf', done => {
+    jest.useRealTimers();
+
+    let bamboo = false;
+    raf(() => {
+      bamboo = true;
+    });
+
+    expect(bamboo).toBe(false);
+
+    raf(() => {
+      expect(bamboo).toBe(true);
+      done();
+    });
+  });
+});