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.

#ramazonMuborak 🌙

Olloh bu ramazon oyini chiroyli va o’ziga maqbul amallar bilan o’tkazishlikni hammamizga nasib qilsin. Hammaga Ramazon muborak bo’lsin 😇.

Mahsus 😊

Dasturlash'da o'zi nima qilinadi deganlar uchun qiziqarli animation video

p.s / Dasturlashdan xabari bo'lmaganlar ham ko'rib mazza qiladi ishonavering.

O'zimni sharofatim bilan bitta bug o'tib ketgani hisobiga 3-da turibmiz 😄.|

p.s/ Barcha ayol-qizlarni bayrami bilan tabriklaymiz.

Bugun call-center da ishlayapman 😅. O’zim pishirgan osh, o’zim yeyyapman.

p.s/ Moboodo xatolik bo'lsa aloqadamana 🫡🤣

😵‍💫Kun tugab hamma uyiga gul, sovg’a olib qaytyotgan bir paytda men mushugimga (aniqrog’i kakasiga) qum olib ketyapman.

p.s/ Hayot kimlargadir beshafqat 😅

Shunday kundan keyin bitta Moxito ketadimi ?😆

#midnight

«Olislarda, qayerdadir mening ham gulim bor», – deb shivirlasang bas – ko‘ksing tog‘dek ko‘tarilib ketadi…»

– «Qo‘lga o‘rgatish» degani nima?