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For example, the vaccine that should be given should be given a little bit.该剧是一部通过某一天突然选择了死亡的朋友留下的疑问的照片来面对过去事件的幻想型罗曼史推理剧。The above is just a synchronous chain of responsibilities, We let each node function return a specific value "nextSuccessor" synchronously, To indicate whether to pass the request to the next node, we will often encounter AJAX asynchronous requests in our development. After the request is successful, we need to do something so-and-so. At this time, if we apply the above synchronous request again, it will not take effect. Let's understand and use asynchronous responsibility chain to solve this problem. We add another prototype method Chain.prototype.next to the Chain class to manually pass the request to the next node in the responsibility chain.The enhanced module pattern is used when it is suitable for those situations where the single column must be an instance of some type and some attributes or methods must be added to enhance it. For example, the following code:In this example, the policy pattern is used to encapsulate the algorithm. However, in practice, it can be used to encapsulate almost any type of rules, as long as the similarities between different rules are analyzed and abstracted　　就这样，夏宇豪成为了排球队中的一员，王振文和王振武两人也紧随其后。随着时间的推移，夏宇豪和邱子轩之间的距离迅速拉近，与此同时，文武两兄弟之间的感情线也越发清晰起来。