September 2022
Intermediate to advanced
585 pages
8h 17m
Chinese
Content preview from JavaScript 经典实例：第三版
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编写
Web
应用
｜
433
.replace()
把用户的浏览器导航到指定的
URL
，并从浏览器历史记录中删除当前文档。
toString()
以字符串的形式返回当前
URL
。
利用这些方法可以借助
JavaScript
处理页面路由，为应用
UI
和交互路由提供有用的
功能。虽然这些特性在开发应用时非常有用，但是若想完整重定向页面，还是要做
HTTP
重定向，并相应设置表示永久重定向的
301
状态码，或者表示临时重定向的
302
状态码。
流行的
JavaScript
库一般都带有路由库，或者可以使用第三方路由库进行扩
展，实现完善的客户端路由。
16.7
把文本复制到用户的剪贴板
16.7.1
问题
你的应用需要把文本（例如分享链接）复制到用户的剪贴板。
16.7.2
方案
若想把文本复制到用户的剪贴板，把文本放在
input
或
textarea
元素中，使用
navigator.clipboard.writeText
方法复制文本。
在
HTML
中编写一个表单元素和一个按钮。在下面的示例中，笔者指定了
input
元
素的
value
属性。这个属性也可以由用户或代码动态设置。
<input
type="text" id="copy-text" value="https://example.com/share/12345"
>
<button
id="copy-button"
>
Copy To Clipboard
</button>
在对应的
JavaScript
脚本中，为
button
元素添加一个事件处理函数。点击按钮
434
｜
第
16
章
后，使用
select ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.