Print Hello World

Add two variables

Print variables inside string

Check even or odd

Find largest number

Find factorial of an integer

Print Fibonacci series

Reverse a string

Check palindrome

Find sum of array elements

Count vowels in a string

Check if leap year

Using switch for grades

Generate random Int

Key value pairs

Safely unwrap optional

Simple function

Unique items

Value types

Iterate array

Transform array

Filter elements

Aggregate elements

Reference types

Subclassing

Define requirements

Extend existing types

Value types with cases

Enums holding data

Early exit

Execute at scope exit

Group values

Modify struct properties

Getter/setter

willSet/didSet

as, as?, as!

Default value for optional

Functions as variables

Discard nil values

Initialize on first use

Template types

do/try/catch

Define new operators

Custom indexing

private/public

Flatten nested arrays

Type erasure

Common items

O(log n) search

O(n^2) sort

@propertyWrapper

some Protocol

Protocols with generic types

Concurrency safe types

Modern concurrency

Concurrent child tasks

@MainActor

@dynamicMemberLookup

@dynamicCallable

Reference properties

Result<Success, Failure>

Sequence Protocol

JSON encode/decode

Map JSON keys

deinit

Prevent reference cycles

Unowned references

[weak self]

Runtime manipulation

Swift Macros (Swift 5.9+)

Variable length args

Pass by reference

Combine framework

Combine reactive

Combine streams

@State

@Binding

Reactive objects

@StateObject

Global state

UserDefaults binding

Custom UI Modifiers

Responsive sizes

Pass data up hierarchy

Hero animations

NSPersistentContainer

NSFetchRequest

Read/Write Disk

Network calls

Legacy JSON

GCD concurrency

Wait for multiple tasks

Limit concurrent execution

Schedule tasks

Pub/Sub

In-memory caching

Design patterns

Design patterns

Design patterns

Design patterns

Model View ViewModel

Domain logic isolation

Depth First Search

Breadth First Search

Shortest Path