decodeURIComponent 上的意外令牌

Question

我的 grails 视图中有一个参数，我将其传递给 javascript 代码

<g:if test="${replacedString}">
    ${replacedString}
    <g:set var="replacedString" value="${replacedString}"/>
</g:if>
<script>
   var mydata = decodeURIComponent(${replacedString});
   console.log(mydata);
</script>

replacedString 值作为编码字符串传递，即：" 显示为 "。 因此，我有方法

decodeURIComponent

这是我要解码的字符串：

[{"description":"test1 ","filenameAndPath":"test1.pdf"},{"description":"test file","filenameAndPath":"test copy.pdf"},{"description":"","filenameAndPath":""},{"description":"","filenameAndPath":""}]

这段代码不断抛出错误Syntax error: Unexpected token &。
我错过了什么明显的东西吗？

Answer 1

这是 HTML 编码的。

使用here的这个技巧：-

var encoded = "[{"description":"test1 ","filenameAndPath":"test1.pdf"},{"description":"test file","filenameAndPath":"test copy.pdf"},{"description":"","filenameAndPath":""},{"description":"","filenameAndPath":""}]"

var elem = document.createElement('textarea');
elem.innerHTML = encoded;
var decoded = elem.value;

console.log(decoded);

请参阅here 了解 HTML 和 URL 编码的差异