Getting started
- Download Xcode from the App Store
Constants, Variables and Data Types
- Introduction to playground
- Constants and variables
- Introduction to Data Types
- Introduction to String Data Type
- Introduction to Int data Type
- Introduction to Float and Double Type
- Introduction to Boolean Data Type
- String interpolation
- String interpolation continued...
- Good naming conventions to follow
Swift Operators
- Arithmetic operators
- Integer division and possible errors
- Remainder operator
- Compound assignment operators
- Comparison operator
- Comparison operator - checking for equality
- NOT operator
- How to find out the data types of variables
- Type Casting
- Problem Solution 1 - Swap variables
- Problem Solution 2 - Area and perimeter
- Problem Solution 3 - Calculate Percentage
- Problem Solution 4 - Last digits of a number
If Statements
- Introduction to If statements
- Else branch
- Nested if statement
- Else...if statements
- Problem and Solution: Maximum of two numbers
- Problem and Solution: Even or odd number
- Problem and Solution: Divisibilty calculations
- Logical AND operator
- Logical OR operator
- Problem Solution: Class marks
- Problem Solution: Divisibility revisited
- Ternary conditional operator
Switch Statements
- Switch statements
- Switch case - matching multiple values
- Switch range matching
- Switch break statement
- Fallthrough statement
Arrays
- Introduction to Swift Array
- Reading values from array
- Getting multiple values using closed range
- Array type and Any type
- Merging two arrays
- Adding values to existing array
- Removing values from arrays
- Modifying values in arrays
- Mutable and immutable array
- Copying value from one array to another - reference and value types
Dictionaries
- Introduction to Dictionary
- Retrieving values from a dictionary
- Adding a new key-value pair to a dictionary
- Updating value in a dictionary
- Removing items from dictionary
- Other dictionary methods
For Loop, While Loop and Repeat While Loop
- Introduction to For Loop
- Using value of "i" in a loop and the underscore variable
- Looping through arrays
- Looping over dictionaries
- Problem and Solution: Maximum value in an array
- Problem and Solution: Separate numbers into odd and even
- Problem and Solution: Sum the content of an array
- Problem and Solution: Reversed array
- Inner loops
- Break statement
- Continue statement
- Introduction to While Loop
- Beware of an infinite loop
- Repeat while loop
- Repeat while loop example
- Problem and Solution: Separate numbers to array - while loop example
Swift Functions
- Introduction to Function
- Function parameters
- Multiple parameters of a function
- Returning values from functions
- Calling a function from another function
- Parameter as a let constant
Optionals
- Introduction to Optionals
- Introduction to Optionals contd...
- Returning nil from a function
- How to work with optional values
- Unwrapping optional values
- Force unwrap optional types
- Implicitly unwrapped Optionals
- Nil coalescing operator
- Multiple optional binding - unwrapping multiple optionals
- Optional Chaining
- Variable scopes
