阅读更多/更少使用jquery没有损失html

我写了jquery添加阅读更多/ 250个字符后更少阅读。我已经实现以下查询：阅读更多/更少使用jquery没有损失html

var minimized_elements = $('.field-type-text-with-summary .field-items'); 
var minimize_character_count = 250;  
minimized_elements.each(function(){  
    var TextContent = $(this).text(); 
    var TextContentLenght = TextContent.length; 
    var t = $(this).html(); 
    if(t.length < minimize_character_count) return; 
    $(this).html(
    t.slice(0,minimize_character_count)+ 
     '<span>...</span>'+'<a href="#" class="read_more"  style="color:#FF8403;">Read more</a>'+ 
     '<span style="display:none;">'+ TextContent.slice(minimize_character_count,TextContentLenght)+'&nbsp'+'<a href="#" class="read_less" style="color:#FF8403;">Read less</a></span>' 
    ); 
    }); 
    $('a.read_more', minimized_elements).click(function(event){ 
    event.preventDefault(); 
    $(this).hide().prev().hide(); 
    $(this).next().show(); 

    }); 
    $('a.read_less', minimized_elements).click(function(event){ 
    event.preventDefault(); 
    $(this).parent().hide().prev().show().prev().show(); 

    });

但我的问题是，该脚本删除一样，如果文本包含粗体或下划线它显示了所有文本转换成纯文本字符的所有HTML标签。我希望阅读更多/更少的所有格式。请建议。提前感谢。

来源

2016-08-02 Rajan

您正在使用：

var TextContent = $(this).text();

所以你就只当你选择根据您的.html子计数文字的字母（）。这将计算完整的html，包括元素的文本。

var TextContent = $(this).html();

这不是一件容易的事情，因为当你削减你的子字符串，比如说0到250时，你可以在html元素中间断开。

保持HTML的最简单的解决方案就是使用更改高度。（在读少，元素的高度是例如50px，然后在阅读更多的是“自动”或其他）。

另一种更复杂的解决方案是遍历main .each（）的所有子元素，将它们相加，并且当长度大于250的.text（）长度时，应该放置“readmore”。（但取决于你的HTML结构，你应该考虑到，没有孩子的当前长度已经可以大于250 ...

我建议去高度的方法，如果不是你可以做一个小提琴，我们可以帮你。

来源

2016-08-02 17:57:44

我已经改变了$（本）的.html（ t.slice（0，minimize_character_count）+ ' ... '+' Read more' + “的'+ t.slice（minimize_character_count，TextContentLenght）+'＆nbsp'+'Read less' ）; 但它读取后不能正常工作，并开始显示阅读更多。请提供一些不会破坏现有脚本的内容。 – Rajan

我已编辑我的帖子。 –

即使修剪过的字符串也很难保持HTML，这是实际的问题。无法弄清楚这一点！ – Rajan

<!doctype html> 

<html> 
<head> 
<meta charset="utf-8"> 
<title>Untitled Document</title> 
<style> 
.readLess{ display:none;} 
.conteMain{ border:1px solid #ddd; background:#f5f5f5; padding:10px; font:normal 14px Arial, Helvetica, sans-serif;} 
#conteMain p{ margin:0; padding:0;} 
.readLess,.readMore{ background:#3CF; color:#fff; padding:5px 10px; width:80px; margin:10px 0px; cursor:pointer} 
.readLess:hover,.readMore:hover{ background:#090} 
</style> 
</head> 

<body> 
<div class="conteMain"> 
<div id="conteMain"> 
    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.<br> 
<br> 
<p>vived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like </p><br> 

<p>vived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like </p><br> 

<p>vived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like </p><br> 

<p>vived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like </p><br> 

<div>ved not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software l</div><br> 


It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum. 
</div> 
</div> 


<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> 
<script> 
    var conte = $("#conteMain").text().length; 
    var conte1 = $("#conteMain").text(); 
    var bx1 = conte1.slice('',200); 

    if(conte > 200){ 
     $("#conteMain").after("<span class='moreC'>"+ bx1 +"</span>"+"<div class='readMore'>Read More</div><div class='readLess'>Read Less</div>"); 
     $("#conteMain").css("display","none"); 
    }; 

    $(".readMore").click(function(){ 
     $("#conteMain").slideDown("slow"); 
     $(".moreC").css("display","none"); 
     $(".readLess").css("display","block"); 
     $(this).css("display","none"); 
    }); 

    $(".readLess").click(function(){ 
     $("#conteMain").slideUp("slow"); 
     $(".moreC").css("display","block"); 
     $(".readMore").css("display","block"); 
     $(this).css("display","none"); 
    }); 

</script> 
</body> 
</html>

来源

2017-09-07 11:27:59 Sheo

阅读更多/更少使用jquery没有损失html

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