Search⌘ K
Home
Courses
The Way to Go

Multidimensionality

Explore how to create and manipulate multidimensional arrays and slices in Go. Understand the use of nested loops for arrays, and dynamic allocation for jagged slices, enabling you to handle complex data structures effectively.

We'll cover the following...

Multidimensional arrays

Arrays are always 1-dimensional, but they may be composed to form multidimensional arrays, like:

[3][5]int
[2][2][2]float64

The inner arrays always have the same length. Go’s multidimensional arrays are rectangular. Here is a code snippet which uses such an array:

Go (1.6.2)
package main
const (
    WIDTH = 1920    // columns of 2D array
    HEIGHT = 1080   // rows of 2D array
)
type pixel int  // aliasing int as pixel
var screen [WIDTH][HEIGHT]pixel     // global 2D array
func main() {
    for y := 0; y < HEIGHT; y++ {
        for x := 0; x < WIDTH; x++ {
            screen[x][y] = 0    // initializing value to 2D array
        }
    }
}

In the code above, we set two constants WIDTH and HEIGHT at line 4 and line 5, which determine columns and rows of a 2D array in ...