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关于setinterval和js单线程的困惑

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关于setinterval和js单线程的困惑

我的个人理解

JavaScript是单线程的，使用setinterval是定时给这个单线程添加事情，那么我使用两个setinterval去请求两个不同的数据接口，就不会存在并发，按队列顺序请求数据，那么为什么使用setinterval去请求数据接口会出现卡顿


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什么卡顿？网络在pending？还是页面卡顿？
你setInterval怎么写的 你要实现什么效果？
最好贴出相应的代码 可以分析


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