Quyidagilardan qaysi biri true qiymat qaytaradi?
Anonymous Quiz
6%
12 < 3
39%
‘12’ < 3
46%
‘12’ < ‘3’
9%
Bilmayman
👍11🔥5🙏2❤1
Qaysi konstruksiyada strict mode implicit yoqilmaydi?
Anonymous Quiz
22%
Module
23%
Class
38%
Arrow function
17%
Bilmayman
👍8🔥2
Quyidagilardan qaysi birida vaqt murakkablik (time complexity) O(n)ga teng?
Anonymous Quiz
17%
object.prop
49%
Array.includes(element)
17%
Set.has(element)
18%
Map.get(key)
👍4❤1🙏1
ESM modullar browserda "by default" (tarjimasini bilganlar yozvorishsin) kech yuklanadi (deferred).
Biz bilamizki, browserda script taglar kech yuklanishi uchun defer atribut berishimiz kerak. Bo'lmasa browser script tagni uchratishi bilan html processingni tohtatib scriptni yuklab(fetch) va ishlatish(execute)ni boshlaydi. Bu oz navbatida undan keyin kelgan html elementlarning DOMda topilmasligiga sabab boladi. Agar scriptimizda type=module bolsa defer avtomat tarzda yoqiladi.
manba: https://v8.dev/features/modules#defer
#did_you_know
Biz bilamizki, browserda script taglar kech yuklanishi uchun defer atribut berishimiz kerak. Bo'lmasa browser script tagni uchratishi bilan html processingni tohtatib scriptni yuklab(fetch) va ishlatish(execute)ni boshlaydi. Bu oz navbatida undan keyin kelgan html elementlarning DOMda topilmasligiga sabab boladi. Agar scriptimizda type=module bolsa defer avtomat tarzda yoqiladi.
manba: https://v8.dev/features/modules#defer
#did_you_know
v8.dev
JavaScript modules · V8
This article explains how to use JavaScript modules, how to deploy them responsibly, and how the Chrome team is working to make modules even better in the future.
👍22🔥6
VSCodeda importlar va xatolarni tuzatish
Skrindagi config vscodeda importlar bilan ishlashni qulaylashtiradi, yozilgan amallar file saqlanayotganda yozilgan ketma-ketlikda bajariladi:
- Avval ishlatilmagan importlar olib tashlanadi;
- Keyin yetishmaydigan importlar qoshib chiqiladi (tekshirish kerak bolishi mumkin, agar birdan kop import bolsa malum qoidalarga ko'ra birinchisi tanlanadi);
- Keyin importlar malum qoidalarga qarab sort qilinadi;
- Oxirida linter (eslint, stylelint...) xatolar tuzatiladi.
PS:
Skrindagi config vscodeda importlar bilan ishlashni qulaylashtiradi, yozilgan amallar file saqlanayotganda yozilgan ketma-ketlikda bajariladi:
- Avval ishlatilmagan importlar olib tashlanadi;
- Keyin yetishmaydigan importlar qoshib chiqiladi (tekshirish kerak bolishi mumkin, agar birdan kop import bolsa malum qoidalarga ko'ra birinchisi tanlanadi);
- Keyin importlar malum qoidalarga qarab sort qilinadi;
- Oxirida linter (eslint, stylelint...) xatolar tuzatiladi.
PS:
.vscode/settings.json
fileni gitga qoshsa teamdagi hamma vscode foydalanuvchilariga foydali boladi👍41🔥11🙏2❤1
AbortSignal va AbortController
AbortSignal qabul qiladigan APIlar:
- Fetch
- EventTarget API
- ReadableStream/WritableStream
- WebSocket
-
-
-
AbortSignal/AbortController
interfacelari async operasiyalarni tohtatish uchun ishlatiladi. Masalan, juda ko'p ishlatiladigan fetch()
funksiya RequestInit
parameter(object)ga signal
nomli property kutadi (optional) va biz bu propertyga AbortSignal
instance berishimiz mumkin. Va keyinroq bu AbortController
instancening .abort()
methodini chaqirib requestni tohtatishimiz mumkin.AbortSignal qabul qiladigan APIlar:
- Fetch
- EventTarget API
- ReadableStream/WritableStream
- WebSocket
AbortSignal
instance odatda AbortController
da saqlanadi, uni new AbortController()
qilib yaratamiz, lekin uni AbortSignal
static methodlari orqali ham yaratishimiz mumkin. Bular:-
AbortSignal.abort()
- Allaqachon abort qilingan instance yaratadi.-
AbortSignal.any()
- Parameterga AbortSignallardan tashkil topgan iterable oladi va ulardan biri abort bolganda bu ham abort boladi.-
AbortSignal.timeout()
- Parameterda berilgan millisekund qiymatda avtomat abort boladigan instance qaytaradi (Backenddan kutilayotgan javobga timeout qoyish uchun juda qulay)🔥19👍12❤4
Keyingi post yoki videolar nima haqida bo’lishini hohlardiz?
Anonymous Poll
25%
JavaScript
40%
TypeScript
17%
React
19%
Testing
❤3👍1🔥1
Rewrite git history
Adashib asosiy branchga commit va push qilib qoydingiz mi? Havotirga o’rin yo’q, quyidagicha orqaga qaytaramiz:
Adashib asosiy branchga commit va push qilib qoydingiz mi? Havotirga o’rin yo’q, quyidagicha orqaga qaytaramiz:
git checkout main
git reset --soft HEAD
git push origin main --force
git checkout new-branch
git add .
git commit -m "commit to new branch"
git push origin new-branch
🔥53👍23❤4
Zed for Linux
Linux foydalanuvchi dasturchilarga hushxabar. Zed linuxga ham release bo'ldi (to'g'risi o'zim tekshirib ko'rishga imkoniyatim bo'lmadi).
https://zed.dev/linux
Linux foydalanuvchi dasturchilarga hushxabar. Zed linuxga ham release bo'ldi (to'g'risi o'zim tekshirib ko'rishga imkoniyatim bo'lmadi).
https://zed.dev/linux
Zed
Zed on Linux is here!
We've stabilized our Linux build, download it today!
👍11🔥4
Consoleda nima chiqadi?
console.log(Boolean('true'), Boolean('false'));
console.log(Boolean('true'), Boolean('false'));
Anonymous Quiz
11%
false false
6%
false true
28%
true false
56%
true true
🔥8👍6❤2
Updating packages
Eskirgan paketlarni korish uchun:
Ularni "upgrade" qilish uchun:
ishlatishingiz mumkin
#tips_and_tricks
Eskirgan paketlarni korish uchun:
npm outdated
Ularni "upgrade" qilish uchun:
npx npm-check-updates -i
ishlatishingiz mumkin
#tips_and_tricks
❤16👍16
Funksional dasturlashdagi "Currying" tushunchasi bilan tanishib chiqamiz
https://youtu.be/WwfoUoUUWkg
https://youtu.be/WwfoUoUUWkg
YouTube
FP: Currying
👍19🔥7
Funksional dasturlashda "Function Composition" tushunchasi bilan tanishib chiqamiz
https://youtu.be/OpO5Hrp77Z8
https://youtu.be/OpO5Hrp77Z8
YouTube
FP: Function Composition
🔥15
TypeScript 5.6 beta release bo’ldi. Yangiliklar bilan tanishib olamiz
https://devblogs.microsoft.com/typescript/announcing-typescript-5-6-beta/
https://devblogs.microsoft.com/typescript/announcing-typescript-5-6-beta/
Microsoft News
Announcing TypeScript 5.6 Beta
Today we are excited to announce the availability of TypeScript 5.6 Beta. To get started using the beta, you can get it through NuGet, or through npm with the following command: npm install -D typescript@beta Here’s a quick list of what’s new in TypeScript…
👍10🔥3