如何在页面加载中扩展我的部门？

Question

我试过所有与我的查询相关的问题，但都找不到正确的解决方案。现在我已经通过使用slideToggle找到了我的解决方案。现在我要我的所有div在页面加载上扩展。

Fiddle演示 这里

片段在下面的示例

​

$('.expand').click(function(){
    target_num = $(this).attr('id').split('-')[1];
    content_id = '#expandable-'.concat(target_num);
    $(content_id).slideToggle('fast');
});

.expand {
    font-weight: bold;
    font-style: italic;
    font-size: 12px;
    cursor: pointer;
}
.expandable {
    display:none;
}
div {
    margin: 10px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>
    <p class="expand" id="expand-1">more 1...</p>
</div>
<div class="expandable" id="expandable-1">
    <p>1. This is the content that was hidden before, but now is... Well, visible!"</p>
</div>
<div>
    <p class="expand" id="expand-2">more 2...</p>
</div>
<div class="expandable" id="expandable-2">
    <p>2. This is the content that was hidden before, but now is... Well, visible!"</p>
</div>

​

Answer 1

将您的风格更新为：

.expandable {
    display:block;
}

现在，在页面加载时，所有div都是展开默认的。

Answer 2

案例1 : Place $( ".expandable:first" ).slideToggle('fast'); on document ready。它将在装载时扩展第一个div。

请查看下面的片段，以获得更多的理解。

​

$('.expand').click(function(){
    target_num = $(this).attr('id').split('-')[1];
    content_id = '#expandable-'.concat(target_num);
    $(content_id).slideToggle('fast');
});
$(document).ready(function(){
  $( ".expandable:first" ).slideToggle('fast');
});

.expand {
    font-weight: bold;
    font-style: italic;
    font-size: 12px;
    cursor: pointer;
}
.expandable {
    display:none;
}
div {
    margin: 10px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>
    <p class="expand" id="expand-1">more 1...</p>
</div>
<div class="expandable" id="expandable-1">
    <p>1. This is the content that was hidden before, but now is... Well, visible!"</p>
</div>
<div>
    <p class="expand" id="expand-2">more 2...</p>
</div>
<div class="expandable" id="expandable-2">
    <p>2. This is the content that was hidden before, but now is... Well, visible!"</p>
</div>

​

Case 2：在文档就绪上放置$( ".expandable" ).slideToggle('fast');。它将在装载时扩展所有的div。

请查看下面的片段，以获得更多的理解。

​

$('.expand').click(function(){
    target_num = $(this).attr('id').split('-')[1];
    content_id = '#expandable-'.concat(target_num);
    $(content_id).slideToggle('fast');
});
$(document).ready(function(){
  $( ".expandable" ).slideToggle('fast');
});

.expand {
    font-weight: bold;
    font-style: italic;
    font-size: 12px;
    cursor: pointer;
}
.expandable {
    display:none;
}
div {
    margin: 10px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>
    <p class="expand" id="expand-1">more 1...</p>
</div>
<div class="expandable" id="expandable-1">
    <p>1. This is the content that was hidden before, but now is... Well, visible!"</p>
</div>
<div>
    <p class="expand" id="expand-2">more 2...</p>
</div>
<div class="expandable" id="expandable-2">
    <p>2. This is the content that was hidden before, but now is... Well, visible!"</p>
</div>

​

Answer 3

编辑：是你想要的吗？

​

$(document).ready(function(){
    $('.expand').click();
});

$('.expand').click(function(){
    target_num = $(this).attr('id').split('-')[1];
    content_id = '#expandable-'.concat(target_num);
    $(content_id).slideToggle('fast');
});

.expand {
    font-weight: bold;
    font-style: italic;
    font-size: 12px;
    cursor: pointer;
}
.expandable {
    display:none;
}
div {
    margin: 10px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>
    <p class="expand" id="expand-1">more 1...</p>
</div>
<div class="expandable" id="expandable-1">
    <p>1. This is the content that was hidden before, but now is... Well, visible!"</p>
</div>
<div>
    <p class="expand" id="expand-2">more 2...</p>
</div>
<div class="expandable" id="expandable-2">
    <p>2. This is the content that was hidden before, but now is... Well, visible!"</p>
</div>

​