Javascript 替换 & 到 ＆
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/8418938/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Replace & to &
提问by defacto
Due to some Javascript actions to vars I got &instead of &in my var:
So I tried this:
由于对 vars 的一些 Javascript 操作，我得到了&而不是&在我的 var 中：所以我尝试了这个：
url_summer = 'http://192.168.0.20/menulb.php?w=chapter&if=If_menulb&p=' + page ;
url_summer = url_summer.replace(/&/g, '&');
alert(url_summer) ;
And the alert gives me:
警报给了我：
http://192.168.0.20/menulb.php?w=chapter&if=If_menulb&p=521
This is strange, the function replace doesn't want to change &to &.
If I do the same to change &to +it works!
这很奇怪，函数 replace 不想更改&为&. 如果我做同样的改变&，以+它的工程！
url_summer = url_summer.replace(/&/g, '+');
How cant I change &to &?
如何着我的变化&来&？
回答by Wayne
Decode it like this:
像这样解码：
var str = "http://192.168.0.20/menulb.php?w=chapter&if=If_menulb&p=521";
var div = document.createElement('div');
div.innerHTML = str
var decoded = div.firstChild.nodeValue;
回答by websky
url_summer = url_summer.replace('amp;', '');
回答by Monzur
var tt=$('#title').val();
var title=tt.replace(/\&/g,'').replace(/\&/g,'');
$('#new_title').html(title)<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input name="title" class="text txt100 valid" type="text" id="title" value="Remove and symbol Definition & How it is done" size="100" maxlength="200">
<p id="new_title"></p>回答by Sudheesh
var url="http://192.168.0.20/menulb.phpw=chapter&if=If_menulb&p=521"
var elem = document.createElement('textarea');
elem.innerHTML = url;
var decoded = elem.innerText;