eventuate-map:创建一个映射的最终

最终地图 创建一个映射的最终 例子 var eventuate = require ( 'eventuate' ) , map = require ( 'eventuate-map' ) var pie = eventuate ( ) pie ( function ( p ) { console . log ( '%s served...' , p . type ) } ) var addTopping = map ( pie , function ( pie ) { switch ( pie . type ) { case 'shoofly' : pie . topping = 'vanilla ice cream' break case 'pumpkin' :