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jquery - How do I select all anchors with a specific href?

I've got the following code to track pageviews for external links matching a particular URL.

    $("a").each(function(i){
        if (
            $(this).attr('href') == "http://example.com/external/link/" || 
            $(this).attr('href') == "http://example.com/external/link"
        ) {
            $(this).click(function(){
                _gaq.push(['_trackPageview', '/external/pagename']);
            });
        }
    });

This code works, but it's extremely inefficient for pages with a lot of links. Is there a way to use a selector to select all the anchors with matching hrefs instead of scanning through all the links on the page?

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You can use the Attribute Starts With Selector

$('a[href^="http://example.com/external/link"]').click(function() {
      _gaq.push(['_trackPageview', '/external/pagename']);
});

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