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angular
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app.factory('EventBus', function() { | |
var EventMap = []; | |
var EventBus = { | |
on: function(eventType, handler) { | |
if (!EventMap[eventType]) { | |
EventMap[eventType] = []; | |
} | |
EventMap[eventType].push(handler); | |
}, | |
off: function(eventType, handler) { | |
for (var i = 0, len = EventMap[eventType].length; i < len; i++) { | |
if (EventMap[eventType][i] === handler) { | |
EventMap[eventType].splice(i ,1); | |
break; | |
} | |
} | |
}, | |
fire: function(event) { | |
var eventType = event.type; | |
if (EventMap && EventMap[eventType]) { | |
for (var i = 0, len = EventMap[eventType].length; i < len; i++) { | |
EventMap[eventType][i](event); | |
} | |
} | |
} | |
}; | |
return EventBus; | |
}); | |
//test | |
// 订阅 | |
EventBus.on('someEVent', function(event) { | |
var c = event.data.a + event.data.b; | |
}) | |
// 发布 | |
EventBus.fire({ | |
type: 'someEvent', | |
data: { | |
a: 1, | |
b: 2 | |
} | |
}) | |
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