How to append one array to another array
Swift version: 5.6
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 Fernando's book will guide you in fixing bugs in three real, open-source, downloadable apps from the App Store. Learn applied programming fundamentals by refactoring real code from published apps. Hacking with Swift readers get a $10 discount!
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 to make one sprite draw in front of another using zPosition
- How to force one gesture to recognize before another using highPriorityGesture()
- How to make one operation wait for another to complete using addDependency()
- How to synchronize animations from one view to another with matchedGeometryEffect()
- How to run a case-insensitive search for one string inside another
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
