Use sort for multidimensional array (array in array) in Swift?

Question

I want to know that how can we use sort or sorted function for multidimensional array in Swift?

For example theirs an array:

Answer 1

Update for Swift 5.0

sort function is renamed to sorted. Here is the new syntax

let sortedArray = array.sorted(by: {$0[0] < $1[0] })

Unlike "sort" function in <= swift4.0, sort function doesn't modify elements in array. Instead, it just returns a new array.

example,

let array : [(Int, String)] = [
    (5, "test123"),
    (2, "test443"),
    (3, "test663"),
    (1, "test123")
]

let sorted = array.sorted(by: {$0.0 < $1.0})
print(sorted)
print(array)


Output:
[(1, "test123"), (2, "test443"), (3, "test663"), (5, "test123")]

[(5, "test123"), (2, "test443"), (3, "test663"), (1, "test123")]