Javascript 使用 jQuery 获取所选选项的文本
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Get text of the selected option with jQuery
提问by dotty
I have a select box with some values. How do I get the selected options text, not the value?
我有一个带有一些值的选择框。如何获取选定的选项文本，而不是值？
<select name="options[2]" id="select_2">
<option value="">-- Please Select --</option>
<option value="6" price="0">100</option>
<option value="7" price="0">125</option>
<option value="8" price="0">150</option>
<option value="9" price="0">175</option>
<option value="10" price="0">200</option>
<option value="3" price="0">25</option>
<option value="4" price="0">50</option>
<option value="5" price="0">75</option>
</select>
I tried this:
我试过这个：
$j(document).ready(function(){
$j("select#select_2").change(function(){
val = $j("select#select_2:selected").text();
alert(val);
});
});
But it's coming back with undefined.
但它回来了undefined。
回答by JohnP
Close, you can use
关闭，您可以使用
$('#select_2 option:selected').html()
回答by bancer
回答by Bj?rn
Change your selector to
将您的选择器更改为
val = j$("#select_2 option:selected").text();
You're selecting the <select>instead of the <option>
您正在选择<select>而不是<option>
回答by user1278890
Also u can consider this
你也可以考虑这个
$('#select_2').find('option:selected').text();
which might be a little faster solution though I am not sure.
尽管我不确定，这可能是一个更快的解决方案。
回答by PRacicot
You could actually put the value = to the text and then do
您实际上可以将值 = 放在文本中然后执行
$j(document).ready(function(){
$j("select#select_2").change(function(){
val = $j("#select_2 option:selected").html();
alert(val);
});
});
Or what I did on a similar case was
或者我在类似案例中所做的是
<select name="options[2]" id="select_2" onChange="JavascriptMethod()">
with you're options here
</select>
With this second option you should have a undefined. Give me feedback if it worked :)
使用第二个选项，您应该有一个未定义的。如果有效，请给我反馈:)
Patrick
帕特里克
