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@@ -0,0 +1,50 @@
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+<!DOCTYPE html>
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+<html lang="en">
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+<head>
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+ <meta charset="UTF-8">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
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+ <title>Document</title>
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+</head>
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+<body>
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+ <script>
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+ // 1.Object.is() 判断传入的值 是否全等（===）
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+ console.log(Object.is(12,12)); //true
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+ console.log(Object.is(12,"12")); // false
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+ // 2.Object.assign（） 传入的对象 若属性名相同会覆盖 不同会合并
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+ let obj1 = {
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+ name:"孙悟空",
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+ age:18,
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+ sex:"男"
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+ }
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+ let obj2 = {
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+ name:"猪八戒",
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+ age:28
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+ }
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+ console.log(Object.assign(obj1,obj2));
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+ let obj3 = {
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+ name:"唐僧",
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+ age:38
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+ };
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+ let arr = ["北京","上海","哈尔滨"];
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+ // console.log(Object.setPrototypeOf(obj3,arr));
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+ // h5 => localStorage 中的 setItem 和 getItem
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+ // 3.Object.setPrototypeOf 自定义对象设置属性
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+ let newObj = Object.setPrototypeOf(arr,obj3);
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+ // 4.Object.getPrototypeOf 读取自定义对象属性
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+ console.log(Object.getPrototypeOf(newObj))
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+
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+ // es8中新增属性
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+ let obj4 = {
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+ name: "图图",
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+ age:3
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+ }
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+ // 5.Object.keys() 当前对象的属性名的键值对
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+ console.log(Object.keys(obj4),'keys');
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+ // 6.Object.entries() 返回当前对象中可枚举的键值对
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+ console.log(Object.entries(obj4),'entries');
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+ // 7.Object.values() 返回当前对象中可枚举的属性值
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+ console.log(Object.values(obj4),'values');
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+
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+ </script>
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+</body>
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+</html>
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