jQuery根据数据值进行选择

Question

I have several input elements, that only differ on their data- attribute.

<input name="country" data-action="buy"/>
<input name="country" data-action="sell"/>

I'm trying to get the value that the user entered into the input with a "buy" data-

What's the selector I should use?

$("input[name=country] ????").val()

(There is a reason they have the same name and no id that's not related to the question)

Answer 1

只需将data-action="buy"添加为属性选择器

$('input[name="country"][data-action="buy"]').val()

Answer 2

$("input[data-action='buy']").val()

Answer 3

$("input[name='country']").filter(i) {
  return $(this).data('action') == 'buy';
}).val();