用于将大黑点（？）插入 html textarea 的 Javascript 按钮
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Javascript button to insert a big black dot (?) into a html textarea
提问by Brice
I have a textareain a html formand I would like to have a button to add a big black dot character (?) (is this called a bullet?) into this textarea. is it possible in javascript?
我有一个textareain ahtml form并且我想要一个按钮来添加一个大黑点字符（？）（这叫做子弹吗？）到这个textarea. 有可能javascript吗？
Also it needs to be a UTF8character.
它也需要是一个UTF8字符。
Thanks for your help!
谢谢你的帮助！
回答by Quentin
Just access the element and append it to the value.
只需访问元素并将其附加到值。
<input
type="button"
onclick="document.getElementById('myTextArea').value += '?'"
value="Add ?">
See a live demo.
观看现场演示。
For the sake of keeping things simple, I haven't written unobtrusive JS. For a production system you should.
为了简单起见，我没有编写不引人注目的 JS。对于生产系统，您应该这样做。
Also it needs to be a UTF8 character.
它也需要是一个 UTF8 字符。
Browsers generally submit forms using the encoding they received the page in. Serve your page as UTF-8 if you want UTF-8 data submitted back.
浏览器通常使用它们接收页面的编码提交表单。如果您希望返回 UTF-8 数据，请将您的页面作为 UTF-8 提供。
回答by Veysi YILDIZ
you can use html entity as •
您可以使用 html 实体作为 •
