From 81c2e04dfa02af170bd2ba97c5cf0d7ede4ab925 Mon Sep 17 00:00:00 2001
From: yigencong <yigencong@yahoo.com>
Date: Sat, 13 Apr 2024 21:53:35 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E6=B7=BB=E5=8A=A0=E6=B7=B1=E6=8B=B7?=
 =?UTF-8?q?=E8=B4=9D=E5=87=BD=E6=95=B0?=
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---
 js/深拷贝.js | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 js/深拷贝.js

diff --git a/js/深拷贝.js b/js/深拷贝.js
new file mode 100644
index 0000000..1144aa8
--- /dev/null
+++ b/js/深拷贝.js
@@ -0,0 +1,27 @@
+/**
+ * @description 传入一个对象或者数组，返回一个新的对象，内部的引用值也会修改
+ * @param {Object | Array} obj - 一个引用类型 Object 或者 Array
+ * @returns {Object | Array} - 返回新的值
+ */
+function copy(obj){
+  // 判断这个值是否是引用值，如果不是的话就返回
+  if (typeof obj !== 'object' || obj === null)  return obj
+  // 判断数组是否是数组，如果是数组就采用数组的方式便利，否则使用对象的方式便利
+  var newObj = null
+  if(Array.isArray(obj)) {
+    newObj = []
+    var n = obj.length
+    for (var i = 0;i<n;i++) {
+      newObj[i] = copy(obj[i])
+    }
+  }else{
+    newObj = {}
+    var keys = Object.keys(obj);
+    var n = keys.length
+    for (var i = 0;i<n;i++) {
+      newObj[keys[i]] = copy(obj[keys[i]])
+    }
+  }
+
+  return newObj
+}