<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js"></script>
<!-- 1.对象的引用赋值 -->
<script>
// 对象是引用类型
// const info = {name: "why", age: 18};
// const obj = info;
// info.name = "kobe";
// console.log(obj.name);
</script>
<!-- 2.对象的浅拷贝 -->
<script>
const info = { name: "why", age: 18, friend: { name: "kobe" } };
// const obj = Object.assign({}, info);
// lodash
const obj = _.clone(info);
// info.name = "kobe";
// console.log(obj.name);
// info.friend.name = "james";
// console.log(obj.friend.name);
</script>
<!-- 3.对象的深拷贝 -->
<script>
// _.cloneDeep(info)
// const info = {name: "why", age: 18, friend: {name: "kobe"}};
// const obj = JSON.parse(JSON.stringify(info)); // 生成一个新的对象
// info.friend.name = "james";
// console.log(obj.friend.name);
</script>
<!-- 我的补充 -->
<script>
const info2 = { name: "why", age: 18, friend: { name: "kobe" } };
const obj2 = Object.assign({}, info2)
console.log(info2)
console.log(obj2)
console.log(obj2 == info2) // false
info2.name = '哈哈哈'
console.log(info2.name)
console.log(obj2.name)
info2.friend.name = '呵呵'
console.log(info2.friend.name)
console.log(obj2.friend.name)
console.log(obj2.friend === info2.friend) // true
console.log('----------------')
const info3 = {
name: "why",
age: 18,
friend: { name: "kobe" },
reg: /\d/,
fn: function fn() {
console.log(111)
},
date1: new Date()
};
const obj3 = JSON.parse(JSON.stringify(info3))
console.log(info3)
console.log(obj3)
console.log(obj3 == info3) // false
console.log(obj3.friend == info3.friend) // false
</script>
</body>
</html>
