Function for parsing one Object which represents a directory structure into an array

tplParser.js

/**
 * @param JSON          incoming The JSON with all the strings
 * @param array         templates The temporary holder of the templates
 * @param parentName    string      Helper string for storing the name of the route
 * @return array        Array with the parsed routes
 * @example parse([dirA: ['example', 'example2'], dirB: ['example3', subdir:['s1','s2']])
 *          returns ['dirA/example','dirA/example2','dirB/example3','dirB/subdir/s1','dirb/subdir/s2']
 */
function parse(incoming, templates, parentName){
        var i;
        templates = templates || [];
        parentName = parentName || "";
        if(parentName != "" && parentName.charAt(parentName.length-1) != "/"){
            parentName += "/";
        }
        for(i in incoming){
            switch (typeof incoming[i]){
                case 'object':                   
                    parse(incoming[i], templates, parentName +($.isNumeric(i)?"":i));
                    break;
                case 'string':
                    templates.push(parentName+  incoming[i]);
                    break;
            }
        }        
        return templates;
    }