Question

How to print 2D array in Swift

Answer 1

let arr: [[Int]] = [[5, 7], [2, 9], [1, 3]]

for i in 0...2 {
    for j in 0...1 {
        print(arr[i][j])
    }
}



/*
run:

5
7
2
9
1
3

*/

 

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Answer 2

let arr: [[Int]] = [[5, 7], [2, 9], [1, 3]]

for i in 0...arr.count - 1 {
    for j in 0...arr[0].count - 1 {
        print(arr[i][j])
    }
}



/*
run:

5
7
2
9
1
3

*/

 

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Answer 3

let arr: [[Int]] = [[5, 7], [2, 9], [1, 3]]
 
for i in 0..<arr.count {
    for j in 0..<arr[0].count {
        print(arr[i][j])
    }
}
 
 
 
/*
run:
 
5
7
2
9
1
3
 
*/

 

70+ SQL courses for beginners and professionals