如何添加“返回”切换

问题描述 投票:0回答:2

我有一个代码,如果我按“下一步”,它可以使我转到新文本,但是我也想创建另一个按钮,使我可以返回到我正在阅读的先前文本。

我知道我只是写了Previous,但是我不知道要返回的JavaScript。

$(function() {

    $('.js-button').click(function() {
      if ($('div.active').next().hasClass('hidemsg')) {
        $('div.active').next('div').addClass('active').end().removeClass('active');
      }else{
        alert('Sorry, there is no next entry');
      }
    });
});
.hidemsg {
	display: none;
  }
  
  .hidemsg.active {
	display: block;
  }
<!DOCTYPE html>
<html lang="en" class="no-js.june">
	<head>
		<meta charset="UTF-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1">
    
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
    </head>
<div id="msg1" class="hidemsg active">
  	<p class="content__item-copy-text">
						1) Info here
						</p>
</div>
    
<div id="msg2" class="hidemsg"> 
						<p class="content__item-copy-text">
							2) Info Here	</p>
</div>
    
   
<div id="msg3" class="hidemsg">
 	<p class="content__item-copy-text">
							3) Info Here	</p>
</div>
    
    
<div id="msg4" class="hidemsg"> 
 	<p class="content__item-copy-text">
							4) Info Here	</p>
</div>

    <div id="msg5" class="hidemsg">
  	<p class="content__item-copy-text">
							5) Info Here	</p>
</div>
<a href="#" type="button" class="btn btn-default js-button">Next</a>
javascript html css toggle togglebutton
2个回答
0
投票

用以下几行替换您的JavaScript

$(function() {
    $('#next').click(function() {
        $('.hide-default').show();
        if ($('div.active').next().hasClass('hidemsg')) {
            $('div.active').next('div').addClass('active').end().removeClass('active');
        } else{
            alert('Sorry, there is no next entry');
        }
    });
    $('#prev').click(function() {
        //$('.hide-default').show();
        if ($('div.active').prev().hasClass('hidemsg')) {
            $('div.active').prev('div').addClass('active').end().removeClass('active');
        } else{
            alert('Sorry, there is no previous entry');
        }
    });
});

在CSS末尾添加以下CSS行

.hide-default{
    display: none;
}

从您的html中删除以下行

<a href="#" type="button" class="btn btn-default js-button">Next</a>

并将这些行添加到您的html

<a id="prev" href="#" type="button" class="btn btn-default hide-default js-button">Previous</a>
<a id="next" href="#" type="button" class="btn btn-default js-button">Next</a>

0
投票

使用它,就像一个饰物。

// Next
    
    $('.js-button').click(function() {
      if ($('div.active').next().hasClass('hidemsg')) {
        $('div.active').next('div').addClass('active').end().removeClass('active');
      }else{
        alert('Sorry, there is no next entry');
      }
    });   

// Previous

$('#previous_button').click(function()  {

  if ($('.active').prev().hasClass('hidemsg')) {


     $('.active').prev('div').addClass('active').end().removeClass('active');

  } else {

    alert('Sorry, there is no previous entry');

  }

});
.hidemsg {
	display: none;
  }
  
  .hidemsg.active {
	display: block;
  }
<!DOCTYPE html>
<html lang="en" class="no-js.june">
	<head>
		<meta charset="UTF-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1">
    
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
    </head>
<div id="msg1" class="hidemsg active">
  	<p class="content__item-copy-text">
						1) Info here
						</p>
</div>
    
<div id="msg2" class="hidemsg"> 
						<p class="content__item-copy-text">
							2) Info Here	</p>
</div>
    
   
<div id="msg3" class="hidemsg">
 	<p class="content__item-copy-text">
							3) Info Here	</p>
</div>
    
    
<div id="msg4" class="hidemsg"> 
 	<p class="content__item-copy-text">
							4) Info Here	</p>
</div>

    <div id="msg5" class="hidemsg">
  	<p class="content__item-copy-text">
							5) Info Here	</p>
</div>
<a href="#" type="button" class="btn btn-default js-button">Next</a>
<a href="#" type="button" class="btn btn-default" id="previous_button">Previous</a>
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