How can I create a 2D array in swift of a certain size with its values set to 0? Swift

Question

I have this defined variable which is supposed to be a 2d array of ints. How can I make it so that the 2D array is 4x4 and the values are all 0?

var table: [[Int]] 

Answer 1

You can use the Array.init(repeating:count:) initializer.

Example:

let row = Array(repeating: 0, count: 4) // [0, 0, 0, 0]

var table = Array(repeating: row, count: 4)

Result:

print(table)
[[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]]