From e6891f9baa93c2bcc266b04ec0682872e862e410 Mon Sep 17 00:00:00 2001
From: YangJ0605 <1442122744@qq.com>
Date: Tue, 19 May 2020 10:56:14 +0800
Subject: [PATCH] =?UTF-8?q?=E6=AF=8F=E6=97=A5=E5=AD=A6=E4=B9=A0?=
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---
 deepclone.js | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 deepclone.js

diff --git a/deepclone.js b/deepclone.js
new file mode 100644
index 0000000..7fbde95
--- /dev/null
+++ b/deepclone.js
@@ -0,0 +1,38 @@
+function _type(value) {
+  return Object.toString.call(value).slice(8,-1).toLocaleLowerCase()
+}
+
+function deepclone(obj) {
+  if(obj === null) return null
+  if(typeof obj !== 'object') return obj
+  if(_type(obj) === 'regexp') return new RegExp(obj)
+  if(_type(obj) === 'date') return new Date(obj)
+  const newObj = new obj.constructor
+  for(const key in obj) {
+    if(obj.hasOwnProperty(key)) {
+      let item = obj[key]
+      newObj[key] = deepclone(item)
+    }
+  }
+  return newObj
+}
+
+function deepclone2(obj) {
+  if(typeof obj !== 'object' || obj === null) return
+  let newObj = new obj.constructor
+  for(let key in obj) {
+    if(obj.hasOwnProperty(key)) {
+      let item = obj[key],itemType = _type(item)
+      if(item !== null && typeof item === 'object') {
+        if(/(regexp|date)/.test(itemType)) {
+          newObj[key] = new item.constructor(item)
+          continue
+        }
+        newObj[key] = deepclone2(item)
+        continue
+      }
+      newObj[key] = item
+    }
+    return newObj
+  }
+}
\ No newline at end of file