对于同步getter函数,命名约定是明确定义的：

var getFerby = function(){
    ..
    return ferby;
};

但是,如果我想要的ferby不是本地(同步)可用的,那么常见的方法是使用回调来处理这种情况：

/**
 * Asynchronously gets a ferby and passes it to the callback.
 *  
 *     Once the ferby is retrieved,these rules MUST be followed:
 *       1) Don't Feed it after midnight.
 *       2) Don't give it water.
 *       3) Don't let it near bright light.  
 *
 * @param {ferbyCallback} callback - The callback function that expects a ferby.
 */
var fooFerby = function(callback){
    getFerbyLoader().load(function(ferby){
        callback(ferby);
    });
};

/**
 * The callback for the fooFerby function.
 *
 * @callback ferbyCallback
 * @param ferby The ferby
 */

什么是fooFerby的良好命名约定,以便我知道它希望回调？