1. Introduction
Tuples in Swift are used to group multiple values into a single compound value. These values within tuples can be of any type, and they do not have to be of the same type as each other. Tuples are particularly useful when you need to return multiple values from a function.
2. Source Code Example
// Defining a tuple
var person: (name: String, age: Int, address: String) = ("John Doe", 30, "123 Apple St")
// Accessing elements of a tuple
print("Name is \(person.name)")
print("Age is \(person.age)")
print("Address is \(person.address)")
// Ignoring tuple values using _
let (_, _, onlyAddress) = person
print("Only address is \(onlyAddress)")
// Defining a tuple without naming elements
let product = ("iPhone", 999.99)
print("Product name is \(product.0) and price is \(product.1)")
// Using tuple in a function
func fetchPersonDetails() -> (name: String, age: Int, address: String) {
return ("Jane Doe", 28, "456 Orange Ave")
}
let details = fetchPersonDetails()
print("Fetched name: \(details.name), age: \(details.age), address: \(details.address)")
Output:
Name is John Doe
Age is 30
Address is 123 Apple St
Only address is 123 Apple St
Product name is iPhone and price is 999.99
Fetched name: Jane Doe, age: 28, address: 456 Orange Ave
3. Step By Step Explanation
1. A tuple named person is defined with three elements. Each element in the tuple is named: name, age, and address.
2. Elements of the tuple person are accessed using dot notation followed by the name of the element.
3. The underscore _ is used to ignore elements of a tuple during deconstruction. Here, only the address is extracted from the person tuple.
4. A tuple without named elements is defined. The values inside this tuple can be accessed using an index, starting from 0.
5. A function fetchPersonDetails is defined that returns a tuple. This function, when called, returns a tuple with details about a person named "Jane Doe".
6. The returned tuple from the function is stored in constant details and its elements are printed using dot notation.
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Swift Program to Subtract Two Numbers
Swift Program to Multiply Two Numbers
Swift Program to Divide Two Numbers
Swift Program to Find Remainder
Swift Program to Check Even or Odd
Swift Program to Find Factorial of a Number
Swift Program to Generate Fibonacci Series
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Swift Program to Calculate the Area of a Circle
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Swift Program to Make a Simple Calculator
Swift Program to Check Palindrome
Swift Program to Count Number of Digits in an Integer
Swift Program to Sum of Natural Numbers
Swift Program to Display Times Table
Swift Program to Check Prime Number
Swift Program to Find LCM
Swift Program to Find GCD
Swift Program to Find the Power of a Number
Swift Program to Split a String into Words
Swift Program to Check Leap Year
Swift Program to Join Two Strings
Swift Program to Check Armstrong Number
Swift Program to Find Sum of Array Elements
Swift Program to Find the Largest Element of an Array
Swift Program to Perform Matrix Addition
Swift Program to Transpose a Matrix
Swift Program to Multiply Two Matrices
Swift Program to Find Length of a String
Swift Program to Copy One String to Another String
Swift Program to Concatenate Two Strings
Swift Program to Search for a Character in a String
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Swift Program to Create a Simple Class and Object
Swift Program to Implement Inheritance
Swift Program to Handle Simple Exceptions
Swift Variables and Constants Example
Swift Data Types (Int, Double, String) Example
Swift Optionals and Optional Binding Example
Swift Tuples Example
Swift Array Example
Swift Dictionary Example
Swift Set Example
Swift Closures Example
Swift Enums Example
Swift Structures Example
Swift Properties (Stored, Computed) Example
Swift Methods (Instance, Type) Example
Swift Subscripts Example
Swift Inheritance and Overriding Example
Swift Protocols Example
Swift Extensions Example
Swift Generics and Generic Functions Example
Swift Error Handling with Do-Catch Example
Swift Guard Statement Example
Swift Defer Statement Example
Swift Type Casting (as, is, as?) Example
Swift Access Control Example
Swift Attributes (@available, @discardableResult) Example
Swift Pattern Matching Example
Swift Switch Statement and Cases Example
Swift For-In Loop Example
Swift While and Repeat-While Loops Example
Swift Conditional Statements (If, If-Else, Ternary) Example
Swift Operators Example
Swift Memory Management Example
Swift Strong, Weak, and Unowned References Example
Swift Initialization and Deinitialization Example
Swift Protocol-Oriented Programming Example
Swift Nested Types Example
Swift Type Aliases Example
Swift Dynamic Member Lookup Example
Swift Lazy Stored Properties Example
Swift KeyPaths Example
Swift String Manipulation and Methods Example
Swift Regular Expressions Example
Swift
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