JavaScript高级教程js异步编程promise 的相关内容

文章 2023-10-14 来自：开发者社区

带你读《现代Javascript高级教程》二十六、JS中的异步编程与Promise（1）

二十六、JS中的异步编程与Promise1. JavaScript的异步编步机制在了解JavaScript的异步机制之前，我们首先需要理解JavaScript是一种单线程语言。单线程就意味着所有的任务需要按照顺序一次执行，如果前一个任务没有完成，后一个任务就无法开始。这个特性在执行大量或耗时任务时可能会导致阻塞或者界面卡死，这显然是不可取的。为了解决这个问题，JavaSc....

文章 2023-10-14 来自：开发者社区

带你读《现代Javascript高级教程》二十六、JS中的异步编程与Promise（2）

4. requestAnimationFramerequestAnimationFrame是一个优化动画效果的函数，也有它在事件循环中的位置。requestAnimationFrame 的调用是有频率限制的，在大多数浏览器里，这个频率是60Hz，也就是说，每一次刷新间隔为1000/60≈16.7ms。requestAnimationFrame 的执行时机是在下一次重绘之前，而不是立即执行。&...

阿里云文档 2022-12-23

如何使用Node.js脚本节点编写JavaScript代码定制功能逻辑

如果物联网应用开发（IoT Studio）平台提供的节点不能满足您的需求，您可以使用Node.js脚本节点，编写JavaScript代码来灵活定制功能逻辑。目前支持Node v6.10版本。

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更新时间 2023-10-15 18:39:15

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