var level = '';
var data = ''
var readProperties = function(val) {
    if (Object.prototype.toString.call(val) === '[object Object]') {
        data += level + '{\n'
        level += '  ';
        for (var propertyName in val) {
            if (val.hasOwnProperty(propertyName)) {
                data += level + '"' + propertyName + '"' + ': ';
                level += '  ';
                readProperties(val[propertyName]);
            }
        }
        level = level.substring(0, level.length - 2);
        data += level + '},\n'
    }
    else if(Array.isArray(val)){
      data += "[\n"
      for(var i=0; i<val.length; i++){
        readProperties(val[i])
      }
      level = level.substring(0, level.length - 2);
      data += level + '],\n'
    }

    else {
        data += '"' + val + '",\n';
        level = level.substring(0, level.length - 2);
    }
}