From 15b2b423b262e1e372575c107cd79339e8dfc325 Mon Sep 17 00:00:00 2001
From: yeyuqiudeng <yeyuqiudeng@gmail.com>
Date: Sun, 19 Apr 2020 23:31:02 +0800
Subject: [PATCH] =?UTF-8?q?update:=20=E5=AE=8C=E6=88=90cloneDeep?=
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 README.md    |  1 +
 SUMMARY.md   |  1 +
 cloneDeep.md | 36 ++++++++++++++++++++++++++++++++++++
 3 files changed, 38 insertions(+)
 create mode 100644 cloneDeep.md

diff --git a/README.md b/README.md
index f88badb..46165e9 100644
--- a/README.md
+++ b/README.md
@@ -223,6 +223,7 @@
 * [castArray](castArray.md)
 * [keysIn](keysIn.md)
 * [clone](clone.md)
+* [cloneDeep](cloneDeep.md)
 
 ## License
 
diff --git a/SUMMARY.md b/SUMMARY.md
index d84f6a2..b874178 100644
--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -202,4 +202,5 @@
 + [castArray](castArray.md)
 + [keysIn](keysIn.md)
 + [clone](clone.md)
++ [cloneDeep](cloneDeep.md)
 
diff --git a/cloneDeep.md b/cloneDeep.md
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+# lodash源码分析之cloneDeep
+
+本文为读 lodash 源码的第二百篇，后续文章会更新到这个仓库中，欢迎 star：[pocket-lodash](https://github.com/yeyuqiudeng/pocket-lodash)
+
+gitbook也会同步仓库的更新，gitbook地址：[pocket-lodash](https://www.gitbook.com/book/yeyuqiudeng/pocket-lodash/details)
+
+## 依赖
+
+```javascript
+import baseClone from './.internal/baseClone.js'
+```
+
+[《lodash源码分析之baseClone》](internal/baseClone.md)
+
+
+## 源码分析
+
+`cloneDeep` 会对传入的 `value` 做深度复制，源码如下：
+
+```javascript
+const CLONE_DEEP_FLAG = 1
+const CLONE_SYMBOLS_FLAG = 4
+function cloneDeep(value) {
+  return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG)
+}
+```
+
+和 `clone` 一样，也是调用 `baseClone` 来实现，只不过 `bitmask` 传入的是 `CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG` ，也即开启深度复制和复制 `Symbol` 属性。
+
+## License
+
+[署名-非商业性使用-禁止演绎 4.0 国际 (CC BY-NC-ND 4.0)](http://creativecommons.org/licenses/by-nc-nd/4.0/)
+
+最后，所有文章都会同步发送到微信公众号上，欢迎关注,欢迎提意见：  ![](https://raw.githubusercontent.com/yeyuqiudeng/resource/master/images/qrcode_front-end-article.jpg) 
+
+作者：对角另一面 
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