Uncaught SyntaxError: Invalid regular expression flags（看页面源代码）

一、总结

js或者jquery方面的错误看页面源代码，一下子错误就很清晰了

二、Uncaught SyntaxError: Invalid regular expression flags

页面用jquery中的ajax的时候出现这个错误

1 $(document).ready(function(){
2   $("#b01").click(function(){
3   htmlobj=$.ajax({url:"/jquery/test1.txt",async:false});
4   $("#myDiv").html(htmlobj.responseText);
5   });
6 });

网上找的解答是：

@Url.Action only returns the action url's string, without quotes around it.

You'll need to wrap that url in quotes.

Replace:

url: @Url.Action("ReturnMethodTest", "HomeController"),

With:

url: '@Url.Action("ReturnMethodTest", "HomeController")',
//   ^                                                 ^

Otherwise, the file returned to the client will contain:

url: /HomeController/ReturnMethodTest,

Which isn't valid JS, nor what you want. The replacement gives the following result:

url: '/HomeController/ReturnMethodTest',

Which is a perfectly valid JavaScript string.

看了下页面动态html转换成的静态html（通俗说就是页面源代码）：很容易就发现错误了

三、其它错误参照

问题：

public ActionResult ReturnMethodTest(int id) 
{
    string name = "John";
    return Json( new {data=name});       
}

I am trying to get data from this controller by using code below but I am getting Syntax error .

Can you please tell me what am I doing wrong?

$.ajax({
        url: @Url.Action("ReturnMethodTest", "HomeController"),
        data: {
            id: 5,
        },
        success: function (data) {
            console.log(data);
        }
    });

1

try this:url: '@Url.Action("ReturnMethodTest", "HomeController")' – Mohit Kumar Jul 13 '15 at 6:55
My Code looks like this $.ajax({ url: '@Url.Action("ReturnMethodTest", "Home")', data: { id: 5, }, success: function (data) { console.log(data); } }); And firebug throws "500 internal Server Error" /i59.tinypic.com/5y96ok.png – Da Artagnan Jul 13 '15 at 7:13

解答：