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项目异常捕获 about step-by-step HOT 2 OPEN

into-piece avatar into-piece commented on August 26, 2024
项目异常捕获

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into-piece avatar into-piece commented on August 26, 2024

当然我们可以用lazy+suspense进行代码分割，这也是react官方推荐的方法，suspense组件fallback属性，可以设置对应的备用UI

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into-piece avatar into-piece commented on August 26, 2024

那react中没有两个生命周期组件，我们需要如何捕获项目中的异常呢？sentry的实现方法？

  1. try catch
  2. window.onError：setTimeout的报错是try catch无法捕获的，但可以用window.onError捕获
  3. Window: unhandledrejection event：promise的报错是封存在内部的，外部无法感知，我们可以监听unhandledrejection事件，当Promise 被 reject 且没有 reject 处理器的时候，会触发 unhandledrejection 事件

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