如何使用 jquery 获取选项 title="sample"
声明:本页面是StackOverFlow热门问题的中英对照翻译,遵循CC BY-SA 4.0协议,如果您需要使用它,必须同样遵循CC BY-SA许可,注明原文地址和作者信息,同时你必须将它归于原作者(不是我):StackOverFlow
原文地址: http://stackoverflow.com/questions/2791400/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
how to get option title="sample" using jquery
提问by tom
I'm trying to update a hidden field based on the a title attribute on a select option, I've tried the code bellow and can't seem to get it to work. Thanks for any help!
我正在尝试根据选择选项上的标题属性更新隐藏字段,我已经尝试了下面的代码,但似乎无法让它工作。谢谢你的帮助!
<form>
<select id="selectbox">
<option name="test" value="one" title="title" selected="selected">one</option>
<option name="test2" value="two" title="title2">two</option>
</select>
</form>
<input id="update" type="hidden" value="defaultold" />
<script>
$('#update').val('default');
$('#selectbox').change(function() {
$('#update').val($(this).attr("title"));
});
</script>
回答by karim79
Encapsulate that code within a $(document).ready(...
block, and you need to use the option'stitle:
将该代码封装在一个$(document).ready(...
块中,您需要使用该选项的标题:
$(document).ready(function() {
$('#update').val('default');
$('#selectbox').change(function() {
$('#update').val($(this).find("option:selected").attr("title"));
});
});
$(this)
refers to the context of the select element, you can use find
to get the descendant of interest which in this case is the selected option.
$(this)
指的是 select 元素的上下文,您可以使用它find
来获取感兴趣的后代,在这种情况下是选定的选项。
回答by Hamid
Accessing the text of selected option using jquery:
使用 jquery 访问所选选项的文本:
var title = $( "#myselectId option:selected" ).text();