e.preventDefault（）来防止锚点跳转到在匿名函数上不起作用的ID

Question

我有以下jQuery / JS，当单击某个元素时会触发一些操作：

$(tabs).click(function(e) {
    tabs.removeClass('active');
    $(this).addClass('active');

    $(tabIDs).removeClass('js_tab_area_show');
    $($(this).attr('href')).addClass('js_tab_area_show');

    e.preventDefault();
    alert('worked');
});

tabs在此函数之前已初始化，并选择了我要定位的元素。以上所有内容均已正常运行。但是，我现在想禁止锚元素（在这种情况下为tabs）滚动到具有我的锚的href属性中包含的ID的元素。我尝试环顾四周，并建议使用preventDefault()来防止滚动。但是，它对我不起作用。我最常看到的唯一区别是，它们具有一个专门用于处理单击事件的命名函数，该命名事件是在click函数中调用的。另一方面，我的做到了。 alert('worked')确实触发，指示执行到最后的代码。我在这里做错了什么？

Answer 1

href修改

执行以下操作，而不是过度复杂化JavaScript / jQuery或CSS。

<a href="#/">I DON't JUMP</a>

只需添加正斜杠：/

如果您有大量链接，但没有可用的服务器端实用程序，请参见演示2 。它有一个简单的JavaScript链接收集器。

---

演示1

h1,
h2 {
  text-align: center
}

h2 {
  font-size: 64px
}

a {
  display: inline-block;
  height: 30px;
  font-size: 24px;
  width: 40%;
  margin: 400px 0;
}

a:first-of-type {
  color: red;
  text-align: right;
}

a:last-of-type {
  color: blue;
  text-align: left;
}

<main>
  <h1>Scroll Down</h1>
  <h2>⇩</h2>
  <a href="#">Click me.<br>I JUMP.</a>
  <a href="#/">Click me.<br>I DO NOT JUMP.</a>
</main>

---

演示2

Array.from(document.querySelectorAll('a')).forEach(lnx => {
  if (lnx.getAttribute('href') === '#') lnx.setAttribute('href', "#/");
});

h1,
h2 {
  text-align: center
}

h2 {
  font-size: 64px
}

main {
  margin: 400px auto;
}

a:nth-of-type(odd) {
  background: #000;
  color: #fff;
}

a:nth-of-type(even) {
  color: #000;
}

<h1>Scroll Down</h1>
<h2>⇩</h2>
<main>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
  <a href='#'>WE DON'T JUMP</a>
</main>