使用JavaScript中的RegEx从字符串中删除斜杠

Question

I am trying to remove all special characters except punctuation from a customer complaint textarea using this code:

var tmp = complaint;
complaint = new RegExp(tmp.replace(/[^a-zA-Z,.!?\d\s:]/gi, ''));

but it keeps placing "/" in front, and in back of the string after sanitizing.

Example:

 Hi, I h@ve a% probl&em wit#h (one) of your products.

Comes out like this

 /Hi, I have a problem with one of your products./

I want

 Hi, I have a problem with one of your products.

Thanks in advance for any help given.

Answer 1

The variable complaint is converted to a regular expression because you use the RegExp() constructor.

This probably isn't what you want. (I assume you want complaint to be a string).

Strings and regular expressions are two completely different data types.

Your output demonstrates how JavaScript displays regular expressions (surrounded by / characters).

If you want a string, don't create a regular expression (ie remove the RegExp constructor ).

In other words:

complaint = complaint.replace(/[^a-zA-Z,.!?\d\s:]/gi, '');

Answer 2

您不需要RegExp构造函数：

complaint = tmp.replace(/[^a-zA-Z,.!?\d\s:]/gi, '');