20 - dars | Optional Chaining.

Questions:
— Optional chaining nima?

Homework:
— nope


Contacts:
JavaScript to'liq content: LINK
Academy: Webbrain Academy
General IT: Sardorbek Web
Coding Lifehack: Sardorbek Coder

21 - dars | String.

Questions:
— Stringdagi 3ta quota haqida malumot bering.
— Special characters'ning vazifasi nima?
— stringda bitta belgini chiqarish chun qanday usullardan foydalanamiz?
— Stringda slice bn splice farqi nimada?
— substr / substring ning farqi nimada?
— stringda pad... qanday metod va qanaqa ko'rinishlari bor?
— stringni arrayga o'tkazishdan qanday metoddan foydalanamiz? metod parametori haqida ham malumot bering.
— stringni for of bilan ishlatilishi haqida malumot bering
— localCompare vazifasi nima va undan qaytadigan qiymatlari qanday?

Homework:
— rasmdagi 5ta masalani ishlang.
— Marafon-2 dagi stringa aloqador barcha savollarga javob bering.
— Marafon-3 dagi stringa aloqador barcha savollarga javob bering.

leetcode | codewars | codility
— nope

Contacts:
JavaScript to'liq content: LINK
Academy: Webbrain Academy
General IT: Sardorbek Web
Coding Lifehack: Sardorbek Coder

22-23 - dars | Arrays.

Questions:
— Array nima?
— array decloration haqida malumot bering.
— slice bn splice ning farqlari haqida malumot bering.
— for in bn for of ning farqi nimada?
— Object bilan arrayning farqi nimada?
— new Array bilan array yasashni qanday ustunligi bor?
— malumotni array ekanligini qanday aniqlashtiramiz?



Homework:
— mavzu bo'yicha video darslik tayorlash kerak.
— Marafon-2 dagi array aloqador barcha savollarga javob bering.
— Marafon-3 dagi array aloqador barcha savollarga javob bering.
— rasmdagi 4ta masalani ishlang.

leetcode | codewars | codility
— nope

Contacts:
JavaScript to'liq content: LINK
Academy: Webbrain Academy
General IT: Sardorbek Web
Coding Lifehack: Sardorbek Coder

24-25 dars | Advanced Arrays.

Questions:
— find bn findIndex ni ishlash tezligidagi farqini tushuntirib bering?
— find vs filter — bir biridan farqlari nima?
— sort vs filter — bir biridan farqlari nima?
— map vs forEach — bir biridan farqlari nima?
— every / some / fill / copyWithin — bir biridan farqlari nima?
— flat vs flatMap — nima va ishlatilishi haqida to’liq malumot bering.
— Array.from() — nima va params haqida to’liq malumot bering.
— fromEntries — haqida malumot bering.
— infinit nested arrayni yahlid bitta perntga olib kelish uchun nima qilamiz?
— reduce'ning funksionalni bajarilish tartibini aytib bering.
— set vs WeakSet nima?
— Map va WeakMap nima?

Homework:
— mavzu bo'yicha video darslik tayorlash kerak.
— rasmdagi 9ta masalani ishlang.

leetcode
— chunk array link / easy
— array wrapper link / easy
— array reduce link / easy
— Nested array link / medium
— Joining array link / medium

codewars
— compare power link / easy
— compare version link / medium

Contacts:
JavaScript to'liq content: LINK
Academy: Webbrain Academy
General IT: Sardorbek Web
Coding Lifehack: Sardorbek Coder

26 - dars | Array Exercise | CRUD

Questions:
— bu darsda array bo'yicha faqat amaliyot qilingan.

Homework:
— Marafon-2 dagi arrayga aloqador barcha savollarga javob bering.
— Marafon-3 dagi arrayga aloqador barcha savollarga javob bering.


Contacts:
JavaScript to'liq content: LINK
Academy: Webbrain Academy
General IT: Sardorbek Web
Coding Lifehack: Sardorbek Coder

27 - dars | Distructure

Questions:
— Array distructure haqida malumot bering.
— Object distructure haqida malumot bering.
— Parametor distructure haqida malumot bering. Array va Object ko'rinishida
— Array va Objectda nested distructure qanday ko'rinishda bo'ladi?
— ...res haqida malumot bering.
— Destructure bo'lgan malumotni nomini qanday o'zgartiramiz?

Homework:
— nope

leetcode | codewars | codility
— nope

Contacts:
JavaScript to'liq content: LINK
Academy: Webbrain Academy
General IT: Sardorbek Web
Coding Lifehack: Sardorbek Coder

29 - dars | Map and Set | WeakMap and WeakSet

Questions:
— new Map: set, get, delete, clear haqida malumot bering.
— Map'ni generator ko'rinishida ishlatib bering.
— Loops with new Map haqida malumot bering.
— new Set: add, has, delete, clear
— new WeakMap ni Mapdan farqi nimada?
— new WeakSet'ni Set'dan farqi nimada?

Homework:
— function cache yozing. bir marta ishlatilgan function parametor ikkinchi marta chaqirilsa, hisoblash ishlarini qilmasdan oldin qilingan natija orqali javob qaytarsin.(rasm)

Contacts:
JavaScript to'liq content: LINK
Academy: Webbrain Academy
General IT: Sardorbek Web
Coding Lifehack: Sardorbek Coder

31 - dars | Scopes | Closure

Questions:
— Scope nima?
— Lexical Environment nima?
— Closure nima?
— Garbage collection nima?

Homework:
— nope

Contacts:
JavaScript to'liq content: LINK
Academy: Webbrain Academy
General IT: Sardorbek Web
Coding Lifehack: Sardorbek Coder

32 - dars | Old var | Global Object

Questions:
— Nega var bugungi kunda kam ishlatiladi?
— IIFE function nima?
— Global Obejct: window, global, globalThis haqida malumot bering.
— Function as an Object.
— Named Function Expression nima?
— new Function haqida malumot bering.

leetcode | codewars | codility
— check new function link / easy
— Mysterious function link / easy +
— Calculate with function link / medium
— Function iteration link / easy +
— Rotate function link / medium
— call function link / medium


Contacts:
JavaScript to'liq content: LINK
Academy: Webbrain Academy
General IT: Sardorbek Web
Coding Lifehack: Sardorbek Coder

33 - dars | setTimeout | setInterval

Questions:
— sinxron(synchronous) va asinxron(asynchronous) tushunchasi nima?
— setTimeout qanday ishlaydi?
— setInterval qanday ishlaydi?
— intervallardan keyin chunck datani qanday qilib clear qilsa bo'ladi?

Homework:
— Marafon-2 dagi setIntervalga aloqador barcha savollarga javob bering.
— Marafon-3 dagi setTimeOut aloqador barcha savollarga javob bering.


Contacts:
JavaScript to'liq content: LINK
Academy: Webbrain Academy
General IT: Sardorbek Web
Coding Lifehack: Sardorbek Coder

34 - dars | Advanced functions

Questions:
— function call nima?
— function apply nima?
— function bind nima?

Homework:
— arraydagi user'larning name va surname'ni chiqarib beruvchi binding function yozing.
— apply, call va bind ishlatish va ularsiz yozilgan code'ni amaliy taqqoslab bering.

Contacts:
JavaScript to'liq content: LINK
Academy: Webbrain Academy
General IT: Sardorbek Web
Coding Lifehack: Sardorbek Coder

35 - dars | Cache | DDOS attack Types

Questions:
— DDOS attack nima?
— DDOS attack'ni qanday qilib frontdan oldini olsa bo'ladi?
— cache nima?
— Qanday holatlarda DDOS attackni frontdan boshqarish tafsiya qilinmaydi...

Homework:
— amalyot darsi. Bunga oid vazifalar yo'q.

Contacts:
JavaScript to'liq content: LINK
Academy: Webbrain Academy
General IT: Sardorbek Web
Coding Lifehack: Sardorbek Coder

36 - dars | Advanced Objects

Questions:
— Properties flag va descriptor haqida maluot bering
— defineProperty nima?
— getOwnPropertyDescriptor nima?
— setter function sintaksini tushuntirib bering.
— getter function sintaksini tushuntirib bering.
— Object malumotini edit qilsa bo'ladi lekin o'chirib yubormaydigan qilib bering.
— Object ichiga malumot qo'shsa bo'ladi lekin edit ham delete ham qilib bo'lmaydigan code yozing.
— freeze nima?
— seal nima
— defineProperty bn freeze vva seal'ning farqlari haqida malumot bering.

leetcode | codewars | codility
— Object extend link / medium
— Deep search link / medium +
— Mirror Obj link / medium
— Object depth link / medium

Contacts:
JavaScript to'liq content: LINK
Academy: Webbrain Academy
General IT: Sardorbek Web
Coding Lifehack: Sardorbek Coder

37 - dars | prototype | __proto__

Questions:
— proto nima?
— prototype nima?
— prototype vs proto farqi?

leetcode | codewars | codility
— array last link / easy
— Counter link / easy / not proto
— Memoize link / medium / not proto

Contacts:
JavaScript to'liq content: LINK
Academy: Webbrain Academy
General IT: Sardorbek Web
Coding Lifehack: Sardorbek Coder