How to append one array to another array
Swift version: 5.2
There are three ways of adding one array to another, and you can use whichever syntax you prefer.
First, make a couple of test arrays to work with:
var first = ["John", "Paul"]
let second = ["George", "Ringo"]Note: I made the first array mutable so we can join the second array to it.
One option for joining arrays is the append(contentsOf:) method, used like this:
first.append(contentsOf: second)Another option is using the += operator, which is overloaded for arrays to combine elements:
first += secondThe third option is to use a regular + to create a new array by combining two others:
let third = first + secondAll three options produce the same resulting array, albeit with different approaches.
SPONSORED Announcing NSSpain 2020: Remote Edition! An online, continuous conference for iOS developers. We’ll start on Thursday and finish on Friday, with talks, activities, and lots of fun for 36 hours, non-stop. Sound good? Join us!
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS – learn more in my book Pro Swift
Similar solutions…
- How do you create multi-dimensional arrays?
- What is a monad?
- How to convert a multidimensional array to a single-dimensional array
- How to add drag and drop to your app
- How to create live playgrounds in Xcode
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
