User:Ucucha/duplinks.js

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This user script seems to have a documentation page at User:Ucucha/duplinks.

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$( function($) {
    if(wgNamespaceNumber != 0) {
        return;
    }
    var portletlink = mw.util.addPortletLink('p-tb', '#', 'Hightlight duplicate links', 'ca-findduplicatelinks');
    $(portletlink).click( function(e) {
        e.preventDefault();
        var seen = {};
        mw.util.addCSS(".duplicate-link { border: 1px solid red; }");
        mw.util.$content.find('a').each(function() {
            var href = $(this).attr('href');
            if(href.indexOf('#') != 0) {
                if(seen[href]) {
                    $(this).addClass("duplicate-link");
                }
                else {
                    seen[href] = true;
                }
            }
        });
    });
});