DEV Community: Pavel Belokon

Embedding Structs in Go

Pavel Belokon — Thu, 05 Sep 2024 00:24:51 +0000

Since Go lacks traditional inheritance and objects, it still adheres closely to object-oriented principles. Instead of using objects, we use structs, and instead of inheritance, we use embedding.

Example:

type Milk struct {
    MilkType  // Type of milk
}

type Cheese struct {
    Milk
    Time time.Time
}

cheese := Cheese{Time: "10 years"}
cheese.MilkType // Accesses the type of milk

In this example, you can see how we can access the Milk struct from Cheese. This approach is simple to write and easy to understand.

So far I really enjoy Go 😀

Cool ways to write functions in Go

Pavel Belokon — Wed, 28 Aug 2024 03:53:34 +0000

Today, I learned something handy about Go's functions. You can actually return multiple values, unlike in JavaScript, where I would typically return an object containing the state.

  // Example
  func add(a int, b int) (int, string) {
     return a + b, "Hurray!"
  }

You can also name the return values, which makes them local variables within the function and allows for an "empty return".

  // Example
  func add(a int, b int) (result int, message string) {
     result = a + b
     message = "Hurray!"
     return
  }

Although I don't find using an empty return to be the best way to write functions, it’s still pretty cool.

My first day with GO

Pavel Belokon — Mon, 26 Aug 2024 01:57:31 +0000

Today, I embarked on a journey to find a versatile programming language that would broaden my perspective on web development.

After spending a lot of time with JavaScript, I felt a bit burned out and wanted to try something new but still related to the web.

One of the things I found really interesting is how Go handles private and public visibility. Instead of using keywords, it's all about how a variable or function is named, uppercase for public and lowercase for private. I find this approach improves readability because you can immediately tell whether something is private or public without needing to check its definition.

That's all for now. I just wanted to kick off my journey with Go by sharing these first impressions in my blog.