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Subjects

JAVASCRIPTHTMLCSSPYTHONSQLJAVACPPCSHARPPHPTYPESCRIPTCRUBYGOSWIFTKOTLINRUSTRBASHSCALAOBJECTIVE-CDARTPERLLUAMATLABXMLJSONMARKDOWNASSEMBLYLATEXYAMLSOLIDITYBLOCKCHAIN

Topics

Swift Basics

Introduction to SwiftSwift Development EnvironmentSwift SyntaxSwift Variables and ConstantsSwift Data TypesSwift OperatorsSwift CommentsSwift Type InferenceSwift Type SafetySwift OptionalsSwift Optional BindingSwift Tuples

Control Flow

Swift If-Else StatementsSwift Switch StatementsSwift For LoopsSwift While LoopsSwift Repeat-While LoopsSwift Break and ContinueSwift Guard StatementsSwift Defer Statements

Functions and Closures

Swift FunctionsSwift Function ParametersSwift Return ValuesSwift Variadic ParametersSwift In-Out ParametersSwift Function TypesSwift Nested FunctionsSwift ClosuresSwift Trailing ClosuresSwift Capturing Values

Collections and Enumerations

Swift ArraysSwift SetsSwift DictionariesSwift Collection OperationsSwift EnumerationsSwift Raw Value EnumerationsSwift Associated Values

Object-Oriented Programming

Swift ClassesSwift StructuresSwift PropertiesSwift MethodsSwift InheritanceSwift InitializationSwift DeinitializationSwift Access ControlSwift Type CastingSwift Nested Types

Protocols and Extensions

Swift ProtocolsSwift Protocol ConformanceSwift Protocol ExtensionsSwift DelegationSwift ExtensionsSwift Generic Protocols

Error Handling and Debugging

Swift Error HandlingSwift Do-Try-CatchSwift AssertionsSwift PreconditionsSwift Debugging Techniques

Generics

Swift Generic FunctionsSwift Generic TypesSwift Type ConstraintsSwift Associated TypesSwift Generic Where Clauses

Memory Management

Swift ARCSwift Strong Reference CyclesSwift Weak ReferencesSwift Unowned ReferencesSwift Capture Lists

Concurrency

Swift Grand Central DispatchSwift Operation QueuesSwift Async/AwaitSwift ActorsSwift Task GroupsSwift Sendable Protocol

Swift Standard Library

Swift String ManipulationSwift Number and Math OperationsSwift Date and TimeSwift Sequence and CollectionSwift Codable ProtocolSwift Result Type

Swift and Objective-C

Swift and Objective-C InteropSwift Bridging Header@objc and dynamicSwift Selector

Advanced Swift

Swift Property WrappersSwift Custom OperatorsSwift SubscriptsSwift Key PathsSwift MetatypeSwift Phantom TypesSwift Result Builders

Swift Operators

Swift operators are powerful symbols that perform specific operations on values. They are essential tools in Swift programming, allowing you to manipulate data efficiently.

Types of Operators

Arithmetic Operators

These operators perform basic mathematical calculations:

  • + (addition)
  • - (subtraction)
  • * (multiplication)
  • / (division)
  • % (remainder)

Comparison Operators

Use these to compare values:

  • == (equal to)
  • != (not equal to)
  • > (greater than)
  • < (less than)
  • >= (greater than or equal to)
  • <= (less than or equal to)

Logical Operators

These operators work with boolean values:

  • && (AND)
  • || (OR)
  • ! (NOT)

Assignment Operators

Used to assign values to variables:

  • = (simple assignment)
  • +=, -=, *=, /= (compound assignment)

Examples

Arithmetic and Assignment Operators


let a = 10
let b = 5
var result = a + b  // result is 15
result -= 3         // result is now 12
let remainder = a % b  // remainder is 0

Comparison and Logical Operators


let x = 5
let y = 10
let isGreater = x > y  // false
let isBothTrue = (x < y) && (y > 0)  // true

Advanced Operators

Swift also provides advanced operators for more complex operations:

  • Range Operators: ... and ..<
  • Nil-Coalescing Operator: ??
  • Ternary Conditional Operator: ?:

These operators enhance code readability and efficiency. For instance, the nil-coalescing operator is particularly useful when working with Swift Optionals.

Custom Operators

Swift allows you to define Custom Operators, enabling you to create specialized operations tailored to your specific needs.

Best Practices

  • Use parentheses to clarify complex expressions
  • Be cautious with operator precedence
  • Utilize compound assignment operators for concise code
  • Consider readability when using custom operators

Understanding Swift operators is crucial for effective programming. They form the foundation for more complex operations and are integral to Swift Control Flow structures.

As you delve deeper into Swift, you'll find operators playing a vital role in various aspects of the language, from basic arithmetic to advanced Swift Type Casting operations.