Jquery语法错误,无法识别的表达式: [英] Jquery Syntax error, unrecognized expression:
问题描述
为什么我会收到此错误,如何测试它以便它不会破坏,我尝试检查null但显然不会工作,谢谢。
Why do I get this error and how can I test for it so it wont break, I tried checking for null but obviously that wont work, thanks.
请不建议不写这样的ID因为我知道错了但是有可能。
Please don't advice to not write the ID like this as I know its wrong but it is a possibility.
var jsonTest = [
{
"myId": "''''''\"\"\"\"'''''''''''''\"#####$'''''",
}
];
alert(jsonTest[0].myId);
// Works - alerts the myId
$('#' + jsonTest[0].myId ).length;
// Error: Syntax error, unrecognized expression:
// #''''''""""'''''''''''''"#####$'''''
推荐答案
jQuery使用此代码检测基于id的选择器:
jQuery's uses this code to detect an id based selector :
characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+"
...
"ID": new RegExp( "^#(" + characterEncoding + ")" ),
此正则表达式失败 '' '' '' \ \ \ \ '' '' '' '' '' '''\ ##### $ '' '' '
或更简单地用于'
。
This regex fails for "''''''\"\"\"\"'''''''''''''\"#####$'''''"
or more simply for "'"
.
查询引擎有限对于如此简洁的语言和id有效性规则来说,这并不是很令人惊讶。它无法处理任何有效的身份证。
The query engine is limited, which isn't very surprising for a so concise language and id validity rules so lax. it can't handle any valid id.
如果你真的需要能够处理任何类型的有效身份证,请使用
If you really need to be able to handle any kind of valid id, use
$(document.getElementById(jsonTest[0].myId))
事实上,你永远不应该使用 $('#'+ id)
,因为它只是添加了一个无用的(有点危险的)解析层对于相同的操作。
In fact, you should never use $('#'+id)
as it simply adds a useless (and a little dangerous) layer of parsing for the same operation.
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