Mastering Swift, arrays, dictionaries, sets, and enums.

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We will cover Swift, arrays, dictionaries, sets, and enums. in this tutorial :-

/*
In Swift, arrays, dictionaries, sets, and enums are commonly used to organize and manipulate data. Here's a brief overview of each:
*/

//1. Arrays:
//An array is an ordered collection of values of the same type.

// Declaration
var numbers: [Int] = [1, 2, 3, 4, 5]

// Accessing elements
let firstElement = numbers[0]

// Modifying elements
numbers += [7, 8, 9]

// Iterating through elements
for number in numbers {
print(number)
}

//2. Dictionaries:
//A dictionary is an unordered collection of key-value pairs.

// Declaration
var person = ["name": "John", "age": 25, "isStudent": true] as [String : Any]

// Accessing values
let name = person["name"]

// Modifying values
person["age"] = 26
person["isStudent"] = false

// Iterating through key-value pairs
for (key, value) in person {
print("\(key): \(value)")
}

//3. Sets:
//A set is an unordered collection of unique values.

// Declaration
var uniqueNumbers: Set = [1, 2, 3, 4, 5]

// Adding and removing elements

// Performing set operations
let otherSet: Set = [4, 5, 6, 7, 8]

//4. Enums:
//An enum defines a common type for a group of related values.

// Declaration
enum CompassDirection {
case north
case south
case east
case west
}

// Using enums
var direction: CompassDirection = .south

switch direction {
case .north:
print("Heading north")
case .south:
print("Heading south")
case .east:
print("Heading east")
case .west:
print("Heading west")
}

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