获得徽章 0
- 利用 PerformanceObserver 监听网络请求
然后将异常请求上报错误日志系统
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function perf_observer(entryList, observer) {
entryList.getEntries().forEach(entry => {
// 处理 performance entry
// 如果某项指标达不到标准，上报 Sentry
console.log(entry);
});
};
const resourcePerformanceObserver = new PerformanceObserver(perf_observer);
resourcePerformanceObserver.observe({ entryTypes: ["resource"] });
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如果该行为在 Worker 中实现是否有约束？展开赞过
评论3 - 常用功能，单测覆盖率达到个人目标后
终于可以开始研究下如何升级至...基于 vite storybook v7+赞过 评论3 - WeakMap 只有 KEY 和 Value 同时不被引用时才会被GC
![[思考]](//lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/img/jj_emoji_15.f58c082.png)
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const weakMap = new WeakMap();
const val1 = {}; // val 被 global scope 引用
(() => {
weakMap.set(new WeakMap(), val1);
})()
queryObjects(WeakMap.prototype);
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const weakMap = new WeakMap();
const key1 = {}; // key 被 global scope 引用
(() => {
weakMap.set(key1, new WeakMap());
})()
queryObjects(WeakMap.prototype);
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const weakMap = new WeakMap();
(() => {
weakMap.set(new WeakMap(), new WeakMap());
})()
queryObjects(WeakMap.prototype);展开赞过 13
![[疑问]](http://lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/img/jj_emoji_31.606e7a5.png)
![[机智]](http://lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/img/jj_emoji_51.e6d838e.png)
![[无辜呆]](http://lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/img/jj_emoji_96.4fb9d71.png)
![[思考]](http://lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/img/jj_emoji_15.f58c082.png)