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Subscribe陳柏融（PJCHENder）- JavaScript 中鼓勵用非同步的 API，但用了就會提升效能避免阻塞嗎？
歡迎來到 JSDC 2020 下半場 | 術場 (14:00 ~ 17:00) 共筆
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Learn More →共筆入口：https://hackmd.io/9r79EYfvTgW23Yy9fgTFxA
點選主題就可以進到個別場次的共筆
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Learn More →tags:
jsdc2020,下 半場 - 術場MDN Web Worker
Event Loop + 非同步語法(ex:SetTimeout, Promise)並不會讓主執行緒不被複雜運算卡住
非同步語法只是讓複雜運算晚一點發生，實際執行運算的地方還是在主執行緒
- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
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Learn More →web worker可以開另外一個執行緒，把複雜運算放到web worker來做，就能避免主執行緒被複雜運算占用而有卡住現象
前端和後端都有web worker
前端卡住現象:使用者畫面hang住
後端卡住現象:無法取得回應