* simple class inheritance * @param {Function} child * @param {Function} base * @param {Object} [properties]

* 计算最适合显示的条目个数 * @returns {number}

* walk objects and arrays * @param {Object} obj * @param {Function} iterator * @param {Object} context

* small indexOf wrapper * @param {String} str * @param {String} find * @returns {Boolean} found

* Parse the given `str` and return milliseconds. * * @param {String} str * @return {Number} * @api private

* extend object. * means that properties in dest will be overwritten by the ones in src. * @param {Object} dest * @param {Object} src * @param

* calculate the absolute distance between two points * @param {Object} p1 {x, y} * @param {Object} p2 {x, y} * @param {Array} [props] containing

* find if a array contains the object using indexOf or a simple polyFill * @param {Array} src * @param {String} find * @param {String} [findByKe

* if the argument is an array, we want to execute the fn on each entry * if it aint an array we don't want to do a thing. * this is used by all th