Does this return what you want?
[[1,2] , [3,7] , [2,9] , [10,19]].sorted(by: {$0[0]<$1[0]})
3
solved Is there a way to sort an array by a subarray’s index in Swift?
Does this return what you want?
[[1,2] , [3,7] , [2,9] , [10,19]].sorted(by: {$0[0]<$1[0]})
3
solved Is there a way to sort an array by a subarray’s index in Swift?