js 事件循环 永不阻塞 如何理解？-灵析社区

PunkMaccccc

![image.png](https://wmprod.oss-cn-shanghai.aliyuncs.com/images/20250111/f2c1b2725ea1d08b1c92afae796a1297.png) [文档地址](https://link.segmentfault.com/?enc=yPCNTIypg7IOrOeOdGk5mA%3D%3D.3%2Bz7lIy0l7aBdA7682pgGgZ9aUrvV6TAOTIWVVUTngeG057ZxKe7hs3YBVagkIFj7ha1rlthtP6FXDNGKZlGUZKjdPpxRsF2vQeqzMoNb4h0AqEAuJtwRKKfbliCAV%2BWSwCKMTzQxFpcuKhMUHnVcA%3D%3D) 写个死循环，堵塞渲染主线程不算吗？ 还是其他线程的操作失败后仍然允许执行渲染主线程后续操作，这算不上`永不阻塞`吧。

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问AI
"https://www.jianshu.com/p/aa60ca7371b0" (https://link.segmentfault.com/?enc=k%2F9j%2FHW1vSS1f9PvH53%2FlQ%3D%3D.3S%2F%2FQ2d7dHIB%2FA0WvyrP4HIjeD7snu0X4nLccCiC%2BtEdcVbFz%2BqKExjc1mYZv1cK) 看看这篇文章。你没理解阻塞的概念