Question

How to create an empty 2D array and append rows to it in Swift

Answer 1

var arr = [[String]]()

var row1 = [String]()
row1.append("swift")
row1.append("java")

arr.append(row1)

var row2 = [String]()
row2.append("c++")
row2.append("python")

arr.append(row2)

print(arr)




/*
run:

[["swift", "java"], ["c++", "python"]]

*/

 

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