find match in object keys

object_key_matcher.js

function(attrs, exp) {
    if (typeof attrs === 'object' && attrs !== null) {
      var keys = Object.getOwnPropertyNames(attrs),
          i = keys.length,
          type = '';

      while (i--) {
        var attr = attrs[keys[i]];

        if (typeof attr === 'object') {
          if (attr.name) {
            var match = attr.name.match(new RegExp(exp, 'ig'));
            if (match) type = match[0];
          }
          if (typeof attr.attributes === undefined) {
            type = this.type(attr, exp);
          }
        }
      }

      return type;
    }
};