Question

我很想知道是否有人可以告诉我为什么这不起作用？它只适用于一次。我正在尝试用基础的切换对象切换div的高度。当我点击#new标签时它也完美切换。但那不是想法。

＆＃13;

var open = 0;
$('#newtopicbutton').click(function() {
  if (open === 0) {
    $('#new').css({
      'height': '440px',
      'color': 'white',
      'font-size': '44px'
    });
    open = 1;
  } else {
    if (open === 1) {
      $('#new').css({
        'height': '48px',
        'color': 'white',
        'font-size': '44px'
      });
      open = 0;
    }
  }
});

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="new" class="large-3 medium-3 small-3 columns" style="padding-top:10px;background:#2f2f2f;margin-top:20px;height:440px;color:white;font-weight:700;font-size:14px !important;">
  <div id="newtopicbutton" class="switch small">
    <input class="switch-input" style="background:red;" id="exampleSwitch" checked="true" type="checkbox" name="exampleSwitch">
    <label class="switch-paddle" for="exampleSwitch">
      <span class="show-for-sr float-right">NEW TOPICS</span>
    </label>
  </div>
</div>

＆＃13;

只适用一次。

Answer 1

你只需要在输入按钮上听取click事件而不是在div

周围

var open = 0;
$('#exampleSwitch').click(function() {
if (open===0) {
    $('#new').css({
        'height': '440px',
        'color': 'white',
        'font-size': '44px'
    });
	open=1;}
else{
	if (open===1) {
    $('#new').css({
        'height': '48px',
        'color': 'white',
        'font-size': '44px'
    });
	open=0;}
}
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="new" class="large-3 medium-3 small-3 columns" style="padding-top:10px;background:#2f2f2f;margin-top:20px;height:440px;color:white;font-weight:700;font-size:14px !important;">
  <div id="newtopicbutton" class="switch small">
    <input class="switch-input" style="background:red;" id="exampleSwitch" checked="true" type="checkbox" name="exampleSwitch">
    <label class="switch-paddle" for="exampleSwitch">
      <span class="show-for-sr float-right">NEW TOPICS</span>
    </label>
  </div>
</div>

但正如评论中所提到的，最好使用.toggleClass

Answer 2

我修改了你的代码：

<html>
<head>
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script> 

<body>
<div id="new" class="large-3 medium-3 small-3 columns" style="padding-top:10px;background:#2f2f2f;margin-top:20px;height:440px;color:white;font-weight:700;font-size:14px !important;">
  <div id="newtopicbutton" class="switch small">
    <input class="switch-input" style="background:red;" id="exampleSwitch" checked="true" type="checkbox" name="exampleSwitch">
    <label class="switch-paddle" for="exampleSwitch">
      <span class="show-for-sr float-right">NEW TOPICS</span>
    </label>
  </div>
</div>
<style>
#newtopicbutton {
font-size: 14px;
}
</style>
<script>
var open = 1;
$('#newtopicbutton, .switch-paddle span').click(function() {
    if (open===0) {
        $('#new').css({
            'height': '440px',
            'color': 'white',
            'font-size': '44px'
        });
        open=1;
    }
    else {
        if (open===1) {
            $('#new').css({
            'height': '48px',
            'color': 'white',
            'font-size': '44px'
            });
        open=0;
        }
    }

    console.log(open);
});
</script>
</body>
</html>

Javascript if else改变css

2 个答案: