Regular Expression Help?

PullJosh

I'm try to make something a bit like what Sparks did - an image api.
I have no idea why. I'm not going to use it for anything.
But I want to do it.

Anyway, I've got some code that doesn't seem to be working. Here's my code:

function GetUrlValue(VarSearch){
    var SearchString = window.location.search.substring(1);
    var VariableArray = SearchString.split('&');
    for(var i = 0; i < VariableArray.length; i++){
        var KeyValuePair = VariableArray[i].split('=');
        if(KeyValuePair[0] == VarSearch){
            return KeyValuePair[1].replace(/+/g, " ");
        }
    }
}

This should, in theory, grab a “get” value from a URL. And it does. The problem, though, is this line:

return KeyValuePair[1].replace(/+/g, " ");

I'm trying to replace all the plus signs with spaces. The /+/g part is, apparently, according to random people, a regular expression. And it doesn't work. I can't use a normal string (“+”) because then (darn it) JS only replaces the first + sign. When I go into the console (Chrome Canary), all it says is this:
Uncaught SyntaxError: Invalid regular expression: /+/: Nothing to repeat

Can anybody help me replace all the + signs with spaces?

Last edited by PullJosh (June 24, 2014 13:58:35)

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nXIII

You need to escape the +. Use /\+/g.

♡ nXIII · GitHub

scimonster

nXIII wrote:
You need to escape the +. Use /\+/g.

That's because the + means ‘one or more of the preceding character’ IIRC.

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PullJosh

scimonster wrote:
nXIII wrote:
You need to escape the +. Use /\+/g.
That's because the + means ‘one or more of the preceding character’ IIRC.

Okay, thanks Sci and nXIII.

It works perfectly now. I guess I'll request for this to be closed.

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Paddle2See

Closed by request of the topic owner.

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