Go Arrays:

Arrays in Go are fixed-size collections of elements of the same type. Here's a complete guide to understanding and using arrays in Go.

Declaring Arrays

You can declare an array with a specific length and type like this:

var numbers [5]int
fmt.Println(numbers)

Initializing Arrays

You can initialize arrays during declaration:

var primes = [5]int{2, 3, 5, 7, 11}
fmt.Println(primes)

Accessing and Modifying Elements

Use index-based access to get or set elements:

primes[0] = 17
fmt.Println(primes[0])

Array Length

Use the built-in len function to get the length of an array:

fmt.Println(len(primes))

Iterating Over Arrays

You can iterate over arrays using a for loop or range:

for i, value := range primes {
  fmt.Println(i, value)
}

Multidimensional Arrays

Arrays can have multiple dimensions:

var matrix [2][2]int = [2][2]int{{1, 2}, {3, 4}}
fmt.Println(matrix)