Question

How to convert a character (flatten) matrix to a single string in Swift

Answer 1

func flattenMatrix(_ matrix: [[Character]]) -> String {
    return matrix.flatMap { $0 }.map(String.init).joined()
}

func main() {
    let matrix: [[Character]] = [
        ["H", "e", "l", "l", "o"],
        [" ", "W", "o", "r", "l", "d"],
        ["!"]
    ]

    let output = flattenMatrix(matrix)
    print("Flattened string: \(output)")
}

main()



/*
run:

Flattened string: Hello World!

*/

 

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