Javascript regex URL matching

Question

I have this so far:

chrome.tabs.getSelected(null, function(tab) 
{
    var title = tab.title;
    var btn = '<a href="' + tab.url + '" onclick="save(\'' + title + '\');"> ' + title + '</a>';
        
    if(tab.url.match('/http:\/\/www.example.com\/version.php/i')) 
    {
        document.getElementById('link').innerHTML = '<p>' + btn + '</p>';
    }
});

Basically it should match the domain within this:

http://www.example.com/version.php?*

Anything that matches that even when it includes something like version.php?ver=1, etc

When I used the code above of mine, it doesn't display anything, but when I remove the if statement, it's fine but it shows on other pages which it shouldn't only on the matched URL.

EDIT:

if(tab.url.match(/http:\/\/www.example.com\/version.php/i)) 
{
    document.getElementById('link').innerHTML = '<p>' + btn + '</p>';
}

Doesn't even work somehow...

cobrexus · Accepted Answer · 2021-12-08 19:20:50Z

7

Try this:

if(tab.url.match(/http\:\/\/www\.example\.com\/version\.php/i)) 
{
    //...
}

edited Dec 8, 2021 at 19:20

cobrexus

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answered May 15, 2010 at 4:03

limc

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Comments

Arkku · Accepted Answer · 2010-05-15 00:37:16Z

1

match() should take a RegExp object as argument, not a string. You could probably just remove the single quotes '' from around the expression to make it work. For future reference, you should also escape the periods . in the expression (as it is they will match any single character), and insert a ^ in the beginning to only allow this match in the beginning of the URL.

answered May 15, 2010 at 0:37

Arkku

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Comments

Brian Tompsett - 汤莱恩 · Accepted Answer · 2020-10-17 15:11:49Z

1

Remove the quotes. Opera DargonFly gives me:

>>> 'http://www.example.com/version.php'.match(/^http:\/\/www\.example.com\/version\.php/i) 
[object Array]

edited Oct 17, 2020 at 15:11

Brian Tompsett - 汤莱恩

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answered May 15, 2010 at 0:34

Artefacto

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Comments

Artefacto · Accepted Answer · 2010-05-15 00:26:39Z

0

You are creating the RegExp object, but you're not matching it against anything. See here for how to use it (by the way, the syntax is also wrong, it's either /expression/modifiers or RegExp(expression, modifiers)).

answered May 15, 2010 at 0:26

Artefacto

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