Overview of Go (Golang)

Go, also known as Golang, is an open-source programming language developed by Google. It is designed for simplicity and efficiency, making it ideal for developing scalable and high-performance applications. Learn more at Go Official Site.

Key Features of Go:

• Simplicity: Go has a clean syntax, making it easy to read and write code. Learn more
• Concurrency: Go provides built-in support for concurrent programming through goroutines and channels. Learn more
• Static Typing: Go is statically typed, which helps catch errors at compile time rather than runtime. Learn more
• Fast Compilation: Go compiles quickly, allowing developers to see the results of their changes almost immediately. Learn more
• Rich Standard Library: Go comes with a rich set of libraries for web development, I/O, and more. Learn more

Basic Syntax

Here’s a simple example of Go code:

package main
  
  import "fmt"
  
  func main() {
      fmt.Println("Hello, Go!")
  }

This example demonstrates Go's package structure and how to print a message to the console.

Go Examples:

Here are several beginner-friendly examples of Go code:

1. Data Types

package main
  
  import "fmt"
  
  func main() {
      var name string = "Go"
      var age int = 11
      var height float64 = 1.80
      var isFun bool = true
  
      fmt.Println("Name:", name, "Age:", age, "Height:", height, "Is Fun:", isFun)
  }

This example illustrates the declaration of different data types in Go. Learn more

2. Conditional Statements

Conditional statements help control the flow of the program:

package main
  
  import "fmt"
  
  func checkAge(age int) {
      if age >= 18 {
          fmt.Println("You are an adult.")
      } else {
          fmt.Println("You are a minor.")
      }
  }
  
  func main() {
      checkAge(20) // Output: You are an adult.
  }

This example shows how to use an if-else statement to check the age. Learn more

3. Loops

Go supports different types of loops:

package main
  
  import "fmt"
  
  func main() {
      for i := 1; i <= 5; i++ {
          fmt.Println("Count:", i)
      }
  
      count := 5
      for count > 0 {
          fmt.Println("Countdown:", count)
          count--
      }
  }

This example demonstrates a for loop and a while-like loop in Go. Learn more

4. Functions

Functions in Go can be defined using the func keyword:

package main
  
  import "fmt"
  
  func add(a int, b int) int {
      return a + b
  }
  
  func main() {
      fmt.Println("Sum:", add(3, 4)) // Output: Sum: 7
  }

This example illustrates how to define and call a simple function in Go. Learn more

5. Structs and Methods

Here's a basic example of defining a struct and creating a method:

package main
  
  import "fmt"
  
  type Car struct {
      model string
      year  int
  }
  
  func (c Car) display() {
      fmt.Println("Model:", c.model, "Year:", c.year)
  }
  
  func main() {
      myCar := Car{"Toyota", 2020}
      myCar.display() // Output: Model: Toyota Year: 2020
  }

This example demonstrates how to define a struct and a method in Go. Learn more