sjl.js
function () {
            var self = this,
                out = {};
            this._keys.forEach(function (key, i) {
                out[key] = self._values[i];
            });
            return out;
        }
function () {
            var self = this,
                out = {};
            this._keys.forEach(function (key, i) {
                out[key] = self._values[i];
            });
            return out;
        }
Shallow to json method.
@method sjl.stdlib.SjlMap#toJSON
@returns {{}}