Dispatches (d3-dispatch)
Separate concerns using named callbacks.使用命名的回调函数分离关注点
- d3.dispatch - create a custom event dispatcher.创建一个自定义事件分配器
- dispatch.on - register or unregister an event listener.注册或注销一个事件监听
- dispatch.copy - create a copy of a dispatcher.创建一个分配器的拷贝
- dispatch.call - dispatch an event to registered listeners.将一个事件分配给监听器
- dispatch.apply - dispatch an event to registered listeners.将一个事件分配给监听器
