javascript - jQuery($(this).parent() 发现不起作用

Question

我似乎无法让 jquery find 在我拥有的产品网格上工作。知道如何设置吗？

<div id="sold-out" style="margin-top: 10px">
  <a class="grid-view-item__link grid-view-item__image-container" href=
  "/products/moringa-and-coconut-soap"></a>
  <form accept-charset="UTF-8" action="/contact#contact_form" class=
  "contact-form" id="contact_form" method="post" name="contact_form">
    <a class="grid-view-item__link grid-view-item__image-container" href=
    "/products/moringa-and-coconut-soap"><input name="form_type" type="hidden"
    value="contact"><input name="utf8" type="hidden" value="✓"></a>
    <p><a class="grid-view-item__link grid-view-item__image-container" href=
    "/products/moringa-and-coconut-soap"></a><a class=
    "product-page-notify-me notify-me" href="#" style="color: #788188;">Email
    me when available</a></p>
    <div class="clearfix notify-me-wrapper" style="display:none">
      <input class="styled-input" name="contact[email]" placeholder=
      "your@email.com" required="required" style="float:left; width:100%;"
      type="email" value=""> <input name="contact[body]" type="hidden" value=
      "Please notify me when Moringa and Coconut Soap becomes available.">
      <input class="btn styled-submit" style="float:left;" type="submit" value=
      "Send">
    </div>
  </form>
</div>

Javascript代码:

jQuery('.notify-me').click(function() {
  alert('hello');
  jQuery($(this).parent().find('.notify-me-wrapper').fadeIn());           
  return false;
});

但是，我的另一页上针对一个项目的代码运行良好:

jQuery('#notify-me').click(function() {

jQuery('#notify-me-wrapper').fadeIn();           

return false;
} );

Answer 1

.notify-me 的父元素是 p 元素，并且该元素不包含任何带有 notify-me-wrapper 类的后代元素>

您可能想使用closest ，这样您就可以搜索最接近的祖先，您确定它包含具有类 notify-me-wrapper 的元素:

$(this).closest('.contact-form').find('.notify-me-wrapper').fadeIn()

jQuery.closest() :

For each element in the set, get the first element that matches the selector by testing the element itself and traversing up through its ancestors in the DOM tree.