function removeDuplicatePreferences()

in src/util/xml-helpers.js [323:338]

• 10 lines of code
• 1 McCabe index (conditional complexity)

    function removeDuplicatePreferences (xml) {
        const prefs = xml.findall('preference[@name][@value]');

        // reduce preference tags to a hashtable to remove dupes
        const prefMap = new Map(
            prefs.map(({ attrib: { name, value } }) => [name, value])
        );

        // remove all preferences
        prefs.forEach(pref => xml.remove(pref));

        // write new preferences
        prefMap.forEach((value, name) => {
            et.SubElement(xml, 'preference', { name, value });
        });
    }