How do I use the JavaScript string replace method to replace the '+' sign?

Question

All you need to know is in the question. I have a search query in the URL that looks like this:

http://www.mysite.com?param=word1+word2+word3

So far, I can retrieve "word1+word2+word3" but I can't seem to use something like:

document.write(str.replace(/+/g," "));

I want the final output to look like this: "word1 word2 word3"

Thanks for looking.

Answer 1

Try to escape the + sign using the escape char \\ since is a restricted char:

document.write(str.replace(/\+/g," "));

http://www.regular-expressions.info/javascript.html

Answer 2

The + is a special character in regex, if you want to match it literally you have to escape it. So try:

document.write(str.replace(/\+/g," "));

Answer 3

您必须转义+号，在正则表达式中它具有特殊含义。

document.write(str.replace(/\+/g," "));

Answer 4

尝试使用十六进制值

document.write(str.replace(/[\u002B]/g," "));

Answer 5

如何使用split()函数，在这种情况下似乎更简单：

document.write(str.split(",", " ");