Mastering Go - Second Edition

Multi-dimensional arrays

Arrays can have more than one dimension. However, using more than three dimensions without a serious reason can make your program difficult to read and might create bugs.

Arrays can store all the types of elements; we are just using integers here because they are easier to understand and type.

The following Go code shows how you can create an array with two dimensions (twoD) and another one with three dimensions (threeD):

twoD := [4][4]int{{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10, 11, 12},  {13, 14, 15, 16}} 
threeD := [2][2][2]int{{{1, 0}, {-2, 4}}, {{5, -1}, {7, 0}}} 

Accessing, assigning, or printing a single element from one of the previous two arrays can be done easily. As an example, the first element of the twoD ...