Question

How to create a 2D array filled with zeros in Swift

Answer 1

import Foundation

var arr = Array(repeating: Array(repeating: 0, count: 5), count: 5)
 
arr[2][0] = 9
 
for array in arr {
    for value in array {
        print(value, terminator: " ")
    }
    print(" ")
}

 
 
/*
run:
 
0 0 0 0 0  
0 0 0 0 0  
9 0 0 0 0  
0 0 0 0 0  
0 0 0 0 0 
 
*/

 

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Answer 2

import Foundation
 
let rows = 2
let columns = 3
 
// Create a 2D array filled with zeros
var array = Array(repeating: Array(repeating: 0, count: columns), count: rows)
 
print(array)
 
 
 
/*
run:
 
[[0, 0, 0], [0, 0, 0]]
 
*/

 

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