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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.Also in the video: PMDG748, WF ZBAA, Bridge ZUUUDescription of Download and Applicable Version:Beautiful faces, hot songs and graceful and dynamic jumps will attract the attention of audiences all over the country and even at home and abroad.憨豆先生（罗温·艾金森 Rowan Atkinson 饰）是个“有一点笨拙、有一点幼稚、有一点单向思维、有一点腼腆、又有一点短路的家伙，做着单一的事情，穿着单一的衣服。憨豆先生有一个亲密的伙伴，就是他常常随身携带心爱的泰迪熊，连睡觉也要抱着。他平日的穿着则是非常典型的英国保守中产阶级的装扮。剧中对白极少，几乎都是靠“丰富的肢体动作”和“变化多端的表情”来呈现。这套动画，从与孩子生活密切相关的家庭环境、公共环境、饮食安全等多个方面入手，设计了形式多样的安全知识游戏，寓教于乐；同时，配备了相关的育儿安全建议，方便家长进行安全教育方面的亲子互动。希望本动画系列能帮助孩子们尽早掌握安全知识，树立安全意识，养成良好的安全行为规范。