或者，也有一个库。

在这里,https://cdnjs.com/libraries/he

npm install he                 //using node.js

<script src="js/he.js"></script>  //or from your javascript directory

用法如下…

//to encode text 
he.encode('© Ande & Nonso® Company LImited 2018');  

//to decode the 
he.decode('© Ande & Nonso® Company Limited 2018');

欢呼。

最简单的方法是为你的元素设置一个类选择器，然后使用以下代码:

$(function(){
    $('.classSelector').each(function(a, b){
        $(b).html($(b).text());
    });
});

什么都不需要了!

我有这个问题，找到了这个清晰的解决方案，它工作得很好。

使用jQuery解码HTML实体，只需使用这个函数:

function html_entity_decode(txt){
    var randomID = Math.floor((Math.random()*100000)+1);
    $('body').append('<div id="random'+randomID+'"></div>');
    $('#random'+randomID).html(txt);
    var entity_decoded = $('#random'+randomID).html();
    $('#random'+randomID).remove();
    return entity_decoded;
}

使用方法:

Javascript:

var txtEncoded = "á é í ó ú";
$('#some-id').val(html_entity_decode(txtEncoded));

HTML:

<input id="some-id" type="text" />

这里还有一个问题: 转义字符串分配给输入值时看起来不可读

var string = _.escape("<img src=fake onerror=alert('boo!')>");
$('input').val(string);

Exapmle: https://jsfiddle.net/kjpdwmqa/3/

您可以使用该库，从https://github.com/mathiasbynens/he获得

例子:

console.log(he.decode("Jörg &amp Jürgen rocked to & fro "));
// Logs "Jörg & Jürgen rocked to & fro"

我质疑这个库的作者，是否有任何理由在客户端代码中使用这个库来支持<textarea>黑客提供的其他答案在这里和其他地方。他提供了一些可能的理由:

If you're using node.js serverside, using a library for HTML encoding/decoding gives you a single solution that works both clientside and serverside. Some browsers' entity decoding algorithms have bugs or are missing support for some named character references. For example, Internet Explorer will both decode and render non-breaking spaces (&nbsp;) correctly but report them as ordinary spaces instead of non-breaking ones via a DOM element's innerText property, breaking the <textarea> hack (albeit only in a minor way). Additionally, IE 8 and 9 simply don't support any of the new named character references added in HTML 5. The author of he also hosts a test of named character reference support at http://mathias.html5.org/tests/html/named-character-references/. In IE 8, it reports over one thousand errors. If you want to be insulated from browser bugs related to entity decoding and/or be able to handle the full range of named character references, you can't get away with the <textarea> hack; you'll need a library like he. He just darn well feels like doing things this way is less hacky.

扩展String类:

String::decode = ->
  $('<textarea />').html(this).text()

And use as method:

"<img src='myimage.jpg'>".decode()