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こういうかきかたのほうがいい
var emitter={callbacks:[],
register:function(obj){
this.callbacks.push(obj)},
onOpen:function(l){
for each (var obj in this.callbacks){
if('onOpen' in obj){
obj.onOpen(l);
}
}
}
};
var Myclass =function(msg){
this.msg=msg;
}
Myclass.prototype.onOpen=function(html){alert(html);alert(this.msg);}
emitter.register(new Myclass('ddd'));
emitter.register(new Myclass('eeeeS'));
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