String
String
String is a free Swift Academy lesson on CoddyKit. This is lesson 1 of 1. Any 3 lessons of this learning path are free to read in full — after that, CoddyKit PRO unlocks every lesson, plus hands-on practice with a built-in code editor and a 24/7 AI tutor. It is part of the Swift Academy learning path, and your progress syncs across the web and the CoddyKit app. The Swift Academy course includes 1 lessons in total.
Introduction
Hello,
In this lesson, we will do String operations with Swift.
we may want to define a String as a multiline. It will be enough to write the relevant String between Triple quotes.
Let's look at the example below.
let quotation = """
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
"""In Swift, Strings are value types.
In Swift, Strings are value types.
When a new String is created, the String value is copied. So they are expressed as pass by value.
It is important for code security that the string is being copied. It is especially important to know that the Strings used in functions will not change later.
String interpolation
The concept expressed as string interpolation is to replace the placeholders in a string with the corresponding values.
Like many modern languages, it allows us to do String interpolation in Swift quite easily.
Let's look at the example below.
let multiplier = 3
let message = "\(multiplier) times 2.5 is \(Double(multiplier) * 2.5)"
print(message)Congratulations
Congratulations 🎉
In this section, we learned the String operations on Swift.
See you in the next lesson 😎
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Frequently Asked Questions
Is the “String” lesson free?
Yes — any 3 lessons of the Swift Academy learning path, including “String”, are free to read in full here on the web. After that, CoddyKit PRO unlocks every lesson, plus interactive practice with a built-in code editor and a 24/7 AI tutor. The Swift Academy course includes 1 lessons in total.
What will I learn in “String”?
String You practise Swift Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start Swift Academy?
No prior experience is required. Swift Academy on CoddyKit is structured for beginners through advanced learners, so you can start here or from the beginning and move at your own pace. This is lesson 1 of 1.
How long does the “String” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this Swift Academy lesson?
Yes. Every Swift Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.