javascript - 单击时淡入元素并隐藏更多按钮(如果为空)

Question

每次单击按钮时，我都会尝试再显示 2 个 div。当显示所有 div 时，该按钮应该消失。但按钮并没有消失。

$(".button").click(function() {
  $(".content").nextAll(':lt(2)').fadeIn("slow");
});

.hide { display: none; }

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
    <div class="content">Content 1</div>
    <div class="content">Content 2</div>
    <div class="content hide">Content 3</div>
    <div class="content hide">Content 4</div>
    <div class="content hide">Content 5</div>
    <div class="content hide">Content 6</div>
    <div class="content hide">Content 7</div>
    <div class="content hide">Content 8</div>
    <div class="content hide">Content 9</div>
    <div class="content hide">Content 10</div>
    <div class="button">SHOW ME 2 MORE</div>

这是我的 fiddle :https://jsfiddle.net/9z67k8cd/

Answer 1

改变你的js:

$(".button").click(function() {
  $(".content:visible:last").nextAll('.content:lt(2)').fadeIn("slow");
  if ($(".content:visible").length === $(".content").length) {
    $(this).hide();
  }
  
});

.hide { display: none; }

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
    <div class="content">Content 1</div>
    <div class="content">Content 2</div>
    <div class="content hide">Content 3</div>
    <div class="content hide">Content 4</div>
    <div class="content hide">Content 5</div>
    <div class="content hide">Content 6</div>
    <div class="content hide">Content 7</div>
    <div class="content hide">Content 8</div>
    <div class="content hide">Content 9</div>
    <div class="content hide">Content 10</div>
    <div class="button">SHOW ME 2 MORE</div>