在正则表达式javascript中转义问号 [英] escaping question mark in regex javascript

问题描述

我认为这是一个简单的问题。

This is a simple question I think.

我试图在JavaScript中使用正则表达式搜索另一个字符串中字符串的出现，如下所示：

I am trying to search for the occurrence of a string in another string using regex in JavaScript like so:

 var content ="Hi, I like your Apartment. Could we schedule a viewing? My phone number is: ";

 var gent = new RegExp("I like your Apartment. Could we schedule a viewing? My", "g");

 if(content.search(gent) != -1){   
     alert('worked');     
 }          

由于，这不起作用？ character ....我尝试用 \ 转义它，但这也不起作用。有没有其他方法可以使用？字面而不是作为特殊字符？

This doesn't work because of the ? character....I tried escaping it with \, but that doesn't work either. Is there another way to use ? literally instead of as a special character?

推荐答案

你需要用两个反斜杠来逃避它

You need to escape it with two backslashes

\\?

详情请见：

http://www.trans4mind.com/personal_development/JavaScript/Regular ％20Expressions％20Simple％20Usage.htm

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