If you encounter a nested list (two-dimensional array), even if you use the slicing method to copy list2 and modify the elements in list2, list1 will still be changed. Because the elements in the list, such as list1[0], are a list, an object, and a reference. If you look at t...
Home Question Two-dimensional array in Swift This can be done in one simple line.Swift 5var my2DArray = (0..<4).map { _ in Array(0..<) } You could also map it to instances of any class or struct of your choicestruct MyStructCouldBeAClass { var x: Int var y: Int } var my...