Day11 - Ozgina tanaffusdan keyin qayta faolyatdaman. Bu yerga joylash esimdan chiqibdi 😁

Day12 Omad mehnatni yaxshi ko’radi.
Bu ham esimdan chiqib qolgan edi 😁

Day13 Anchandan buyon rejalab yurganim amalga oshdi. Xudo hohlasa yangiliklar hali davom etadi 😁😉.

Yaponlar rostdan ham aqillida.

Yaponyada anchadan yillardan beri bo’lmagan qor yog’moqda va ular bundan ham foyda olish yo’lini o’ylab topishibdi. Endi sayyohlarga qo’r ko’p yog’ayotkan joylarga borib qorni o’z qo’llari bilan tozalash yoki qorkurar mashina minib tozalash imkonini bermoqda va qor ko’rmagan sayyohlar yog’ilib bormoqda ekan.

P.s/ Ham sayyohlikdan foyda, ham tekinga qor tozalash mazzami?

1 kunlik qiyin setupdan so’ng quvonch ko’z yoshlari oqmoqda 🥹🥹.

Coffee - is a tool to convert a code into a "magic"

Day13 Sevgan ishingiz bilan shug’ullaning.

#savol

Object va dynamic turlarning farqi nima ?

🔽 Object - Dart tilida barcha obyektlar ushbu klasdan meros oladi.

- barcha turlar (int, string, bool, List, Map va barchasi) Object klasidan kelib chiqadi;
- object klasida e'lon qilingan barcha o'zgaruvchilar Object'ning umumiy metodlari bilan ishlay oladi;
- object o'zgaruvchilar compile timeda tekshiriladi va xatoliklarni aniqlaydi;
- agar o'zgaruvchining tur metodlari bilan ishlamoqchi bo'lsangiz cast qilishingizga to'g'ri keldi;
- to'g'ridan to'g'ri null qiymat olmaydi buning uchun nullable qilishingiz kerak ya'ni Object?;

🔽 dynamic - barcha turdagi qiymatlarni qabul qilishi mumkin;

- tekshiruvlar runtime'da amalga oshiriladi;
- runtime check bo'lgani uchun ishlatish havfsiz emas ya'ni runtime error chiqish ehtimoli katta;
- o'zgaruvchining metodlariga kirish mumkin lekin noto'g'ri bo'lsa ya'na runtime error olasiz 😅;

✅ Runtime error lardan bilan yuzlashishni hohlamasangiz Object dan foydalangan maqulroq.

Lekin tashqarida mazza qor yog'yaptiya ? ❄️.

#fun
Testerdan hayot saboqlari:
- Hech qachon front-end back-end'ga, back-end esa front-end'ga ishonmasligi kerak. Tester esa hech biriga ishonib qolmasigi kerak auff😎🤘🤘.

Qiziqtirgan savollarni shu yerga yozishilar mumkin. Oxirida javob beramiz

Interviewer: Sirjoddin Odamboev (4+ years experience);
Candidate: Isroiljon Abduvakhobov (2.5+ years experience);

⚡ Flutter Interview Questions

Programming:

◦ Statically typed programming language and dynamically typed programming language
◦ OOP and its 4 pillars
◦ Difference between abstract classes and interfaces
◦ overloading vs overriding
◦ What is HTTP
◦ SOLID

Dart:

◦ Which platforms dart compiler can compile
◦ Tell me about Dart VM
◦ Tell me about null safety
◦ final vs const
◦ dart collections
◦ dart collections vs package collections
◦ Tell me about map types in dart
◦ Tell me about the object class
◦ The hashCode property uses for what?
◦ Tell me about pattern matching
◦ Tell me about sealed classes
◦ Tell me about macros
◦ EventLoop: events and microtasks

Flutter:

◦ What is flutter?
◦ Flutter architectural overview.
◦ Widgets in flutter
◦ Stateful widget lifecycle
◦ Keys in flutter
◦ Testing in flutter
◦ Trees in flutter
◦ Inherited widget
◦ Buildcontext
◦ Tree shaking
◦ Animations
◦ runZonedGuarded
◦ Platform specific connection
◦ Navigation system in flutter

P.s/ O'ylemanki barchaga foydali bo'ldi.

Eshitib o'rganmoqchi bo'lganlar uchun audio variant.

#savol

Dart'da pattern matching nima ?

Pattern matching - bu o‘zgaruvchilarni aniqlash, shartlarni tekshirish va ma’lumotlarni ajratib olish (destructuring) uchun ishlatiladigan qulay usul. U Dart 3 versiyasidan boshlab qo‘llab-quvvatlanadi va switch operatorida yoki if-case bloklarida ishlatiladi.

1️⃣ Oddit pattern matching (switch bilan) :

void checkValue(Object value) {
  switch (value) {
    case int n:
      print('Bu butun son: $n');
      break;
    case String s:
      print('Bu string: $s');
      break;
    default:
      print('Noma’lum tur');
  }
}

void main() {
  checkValue(42);    // Bu butun son: 42
  checkValue("Salom"); // Bu string: Salom
}

2️⃣ Destructuring (recordlar bilan):

(String, int) getUser() {
  return ('Isroiljon', 25);
}

void main() {
  var (name, age) = getUser();
  print('Ism: $name, Yoshi: $age'); // Ism: Isroiljon, Yoshi: 25
}

bu yerda pattern matching yordamida tuple (Record) qiymatlari ajratib olindi.

3️⃣ if-case bilan pattern matching:

void checkType(Object obj) {
  if (obj case int n) {
    print('Bu butun son: $n');
  } else if (obj case String s) {
    print('Bu string: $s');
  } else {
    print('Noma’lum tur');
  }
}

void main() {
  checkType(100);   // Bu butun son: 100
  checkType('Hello'); // Bu string: Hello
}

4️⃣ Pattern Matching bilan JSON-like obyektlarni ajratish

void checkUser(Map<String, dynamic> user) {
  switch (user) {
    case {'name': String name, 'age': int age}:
      print('Ism: $name, Yoshi: $age');
      break;
    default:
      print('Noto‘g‘ri formatdagi user');
  }
}

void main() {
  var user = {'name': 'Isroiljon', 'age': 25};
  checkUser(user); // Ism: Isroiljon, Yoshi: 25
}

case {'name': String name, 'age': int age} – JSON (Map) ichidagi qiymatlarni ajratib oladi.