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Wahid Abduhakimov
Wahid Abduhakimov

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C# record type

#csharp #dotnet #beginners #uzbek

Quyida bir xil vazifani bajaruvchi record va oddiy C# classni ko'ring.

public record OdamRecord(string Ism, string Familya); public class OdamClass { public OdamClass(string ism, string familya) { Ism = ism; Familya= familya; } public string Ism{ get; set; } public string Familya{ get; set; } } var wahidRecord = new PersonRecord("Wahid", "Abduhakimov"); var wahidClass = new PersonClass("Wahid", "Abduhakimov");
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1. record immutable(o'zgarmas)

Yuqoridagi usulda record yaratilganda uning property'lari immutable*(o'zgartirib bo'lmas)* bo'ladi. Ularga record yaratilyapkanda qiymat beriladi va keyin o'zgartirishning iloji yo'q. { get; init; } deganday gap.

var wahid = new OdamRecord("Wahid", "Abduhakimov"); wahid.Ism= "David"; // Compile error beradi
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2. Tizimli tenglash (==)

record structural equality*(tizimli tenlash)* usulidan foydalanadi. Bu degani agar 2 ta record obyektlarning ichidagi property'lari qiymatlari teng bo'lsa bu ikki obyektlar teng hisoblanadi.

// ... eng tepadagi kodga qarang var wahid1 = OdamRecord("Wahid", "Abduhakimov"); var wahid2 = OdamRecord("Wahid", "Abduhakimov"); Console.WriteLine($"{wahid1 == wahid2}"); // true var davron1 = OdamClass("Davron", "Abduhakimov"); var davron2 = OdamClass("Davron", "Abduhakimov"); Console.WriteLine($"{davron1 == davron2}"); // false
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  1. record non-immutable record yaratilganda odatda immutable bo'ladi dedik. Lekin uni non-immutable*(o'zgartirsa bo'ladigan)* qilib yaratsa ham bo'ladi. 
public record Odam { public string Ism { get; set; } public string Familya{ get; set; } } var wahid = new Odam("Wahid, "Abduhakimov"); wahid.Ism = "David"; // muammosiz ishlaydi.
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Zeriktirib qo'ymaslik uchun davomi keyingi postlarda 😊

Shu joyigacha erinmay o'qib kelgan ekansiz demak siz yoki C#'ni chindan sevasiz yoki shunchaki meni kuzatuvchimsiz. Ikkala holatda ham vaqtingiz uchun katta rahmat 😍

Yurakcha va yakkashoxlarni bosib, menga "podpiska" tashashni unutmang.

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