JavaScript Object [BOM]

1.Window objects:

It represents the browser window that opens

setInterval (): it has a return value, is supplied to the main clearInterval use.

setTimeout (): it has a return value, is supplied to the main clearTimeout use.

clearInterval (): This method can only be cleared by the timing of the operation setInterval set.

clearTimeout (): This method can only be cleared by the timing of the operation setting setTimeout.

Code:

< Script > 
//         // confirmation pop-up box 
//             Confirm The ( "OK to delete it?"); 
//             // input box 
//             prompt ( "Please enter the content:"); 
</ Script >

< Body > 
        < A href = "02 - History Object .html" > Point me! </ A > 
</ body >

result:

http://127.0.0.1:8020/WEB03_JS/%E6%A1%88%E4%BE%8B%E4%B8%89%EF%BC%9A%E4%BD%BF%E7%94%A8JS%E5%AE%8C%E6%88%90%E9%A1%B5%E9%9D%A2%E5%AE%9A%E6%97%B6%E5%BC%B9%E5%87%BA%E5%B9%BF%E5%91%8A/BOM%E5%AF%B9%E8%B1%A1/01_window%E5%AF%B9%E8%B1%A1.html

2.History objects:

History object contains the URL the user visited (in the browser window)

History page: use location page (the href attribute value to the current history)

History page code:

<Input type = "button" value = "return to the previous page."

onclick="javascript:history.back()"/>

go parameters: a return -1 History page; -2 return to the previous page history; 1 enters the next context

History records page.

Click the button to make failure:

onclick=”javascript:volid(0)”

Code:

<script>
            function fanhui() {
                history.go(1);
//                histroy.go(-1);
//                history.back();

            }
</script>

<body>
    <input type="button" value="返回上一页" onclick="fanhui()" />
    <a href="03_location对象.html">下一页</a>
</body>

3.Location 对象

Location 对象包含有关当前 URL 的信息。

href:该属性可以完成通过 JS 代码控制页面的跳转。

代码：

<body>
        <input type="button" value="跳转到history页面" onclick="javascript:location.href='02——history对象.html'"/>
</body>

结果：

4.Navigator 对象

Navigator 对象包含有关浏览器的信息。(该对象开发中不怎么常用)

5.Screen 对象

Screen 对象包含有关客户端显示屏幕的信息。(该对象开发中不怎么常用)

JavaScript Object [BOM]

Guess you like