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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <title>Document</title>
- </head>
- <body>
- <script>
- // 构造函数
- function Person() {
- }
- Person.prototype.vase = '花瓶'
- let p1 = new Person();
- p1.color = 'green'
- console.log(p1)
- // hasOwnProperty 在当前对象自身属性
- console.log(p1.hasOwnProperty("color"))
- console.log("color" in p1)
-
- </script>
- </body>
- </html>
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