Hi I'm trying to match a specific URL that allows for query strings. Basically I need the following to happen:

• - Pass
• / - Pass
• - Pass
• /?id=999 - Pass
• ;rt=000 - Pass
• - Fail
• - Fail

Here is what I have so far:

var pattern = new RegExp('^(https?:\/\/some\.test\.domain\(\/{0,1}|\/home{0,1}))$');
if (pattern.test(window.location.href)){
    console.log('yes');   
}

The above code only works for the first three and not for the query strings. Any help would be appreciated. Thanks.

Hi I'm trying to match a specific URL that allows for query strings. Basically I need the following to happen:

• http://some.test.domain. - Pass
• http://some.test.domain./ - Pass
• http://some.test.domain./home - Pass
• http://some.test.domain./?id=999 - Pass
• http://some.test.domain./home?id=888&rt=000 - Pass
• http://some.test.domain./other - Fail
• http://some.test.domain./another?id=999 - Fail

Here is what I have so far:

var pattern = new RegExp('^(https?:\/\/some\.test\.domain\.(\/{0,1}|\/home{0,1}))$');
if (pattern.test(window.location.href)){
    console.log('yes');   
}

The above code only works for the first three and not for the query strings. Any help would be appreciated. Thanks.

• javascript
• regex

• 1 Can you explain why those that pass pass and why those that fail fail? What is the logic here? Are only nothing and /home allowed? – James Montagne Commented Aug 29, 2013 at 20:53
• @JamesMontagne I only want the first five conditions to work. Anything else should fail. – Sam G. Daniel Commented Aug 29, 2013 at 20:58
• @progenhard Yes, I also need to get the top five links to pass. – Sam G. Daniel Commented Aug 29, 2013 at 21:03

2 Answers 2

A pattern like this should work (at least for your specific domain)

/^http:\/\/some\.test\.domain\.(\/(home)?(\?.*)?)?$/

This will match a literal http://some.test.domain. optionally followed by all of a literal /, optionally followed by a literal home, optionally followed by a literal ? and any number of other characters.

You can test it here

Don't use a Regex, use an URL parser. You could use purl

Then, you'll do:

url = "http://some.test.domain./home" // Or any other
purl(url).attr('path')  // is equal to "home" here.

You'll just need to check .attr('path') against your accepted paths (seemingly "", "/", and "home").

Here's some sample output:

purl("http://some.test.domain./?qs=1").attr('path')
"/"
purl("http://some.test.domain./other").attr("path")
"/other"
purl("http://some.test.domain./home").attr("path")
"/home"