How to swap two items in an array using swapAt()
Swift version: 5.10
If you need to have two items in an array change places, the swapAt() method is exactly what you want: provide it two indexes inside your array, and the items at those positions will be swapped.
For example, consider this array:
var names = ["Paul", "John", "George", "Ringo"]If I wanted John and Paul to swap places, I’d swap positions 0 and 1, like this:
names.swapAt(0, 1)Note: swapAt() will trigger a fatal error if you try to swap beyond the length of the array.
SPONSORED Get accurate app localizations in minutes using AI. Choose your languages & receive translations for 40+ markets!
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS 8.0
Similar solutions…
- How to remove duplicate items from an array
- How to remove items from an array using filter()
- How to enumerate items in an array
- How to loop over non-nil items in an array
- How to loop through items in an array
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
