語法
@mixin [<MixinName>]
概述
Mixin 提供要新增至其他物件的功能。若需要，你可以使用 @mixin 標籤來指出物件是 Mixin。然後，你可以將 @mixes 標籤新增至使用 Mixin 的物件。
範例
/**
* This provides methods used for event handling. It's not meant to
* be used directly.
*
* @mixin
*/
var Eventful = {
/**
* Register a handler function to be called whenever this event is fired.
* @param {string} eventName - Name of the event.
* @param {function(Object)} handler - The handler to call.
*/
on: function(eventName, handler) {
// code...
},
/**
* Fire an event, causing all handlers for that event name to run.
* @param {string} eventName - Name of the event.
* @param {Object} eventData - The data provided to each handler.
*/
fire: function(eventName, eventData) {
// code...
}
};