Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
241 views
in Technique[技术] by (71.8m points)

javascript - Getting closest input value from clicked element with jQuery

I have the following markup:

<div class="options">
  <div class="quantity">
     <label>Qty:</label>
     <input type="text" name="quantity" value="1"/>
  </div>
  <div class="buttons">
    <a href="#" class="add">Add Item</a>
  </div>
</div>

I have a click event binded to the 'add' class using jQuery. When I click that, I'd like to get the value of name="quantity", but there are several places that 'add' is clicked and several quantity fields.

I'm trying to get the 'closest' input value. I've tried using 'closest' and 'findall' , but no luck.

Any idea how I can get this using jQuery? Thank you!

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)
$(".add").on("click", function () {
    var val = $(this).closest("div.options").find("input[name='quantity']").val();
});

The strategy here is:

  • Use closest to find the closest ancestor matching the given selector (in this case a div with class option)
  • Then use find to find the input with the given name using the attribute equals selector.
  • Finally, use val to retrieve the value of the input.

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...