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    Objective-C Notes for Professionals book

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    Amazing collection of free programming books

    The Notes for Professionals book is compiled from Stack Overflow Documentation, the content is written by the beautiful people at Stack Overflow. Text content is released under Creative Commons BY-SA. See credits at the end of this book whom contributed to the various chapters. Images may be copyright of their respective owners unless otherwise specified

    Book created for educational purposes and is not affiliated with group(s), company(s) nor Stack Overflow. All trademarks belong to their respective company owners

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    Content

    • 1-1
      Content list
    • 1-2
      About
    • 1-3
      Chapter 1: Getting started with Objective-C Language
    • 1-4
      Section 1.1: Hello World
    • 1-5
      Chapter 2: Basic Data Types
    • 1-6
      Section 2.1: SEL
    • 1-7
      Section 2.2: BOOL
    • 1-8
      Section 2.3: id
    • 1-9
      Section 2.4: IMP (implementation pointer)
    • 1-10
      Section 2.5: NSInteger and NSUInteger
    • 1-11
      Chapter 3: Enums
    • 1-12
      Section 3.1: typedef enum declaration in Objective-C
    • 1-13
      Section 3.2: Converting C++ std::vector<Enum> to an Objective-C Array
    • 1-14
      Section 3.3: Defining an enum
    • 1-15
      Chapter 4: Structs
    • 1-16
      Section 4.1: Defining a Structure and Accessing Structure Members
    • 1-17
      Section 4.2: CGPoint
    • 1-18
      Chapter 5: Classes and Objects
    • 1-19
      Section 5.1: Dierence between allocation and initialization
    • 1-20
      Section 5.2: Creating classes with initialization values
    • 1-21
      Section 5.3: Specifying Generics
    • 1-22
      Section 5.4: Singleton Class
    • 1-23
      Section 5.5: The "instancetype" return type
    • 1-24
      Chapter 6: Inheritance
    • 1-25
      Section 6.1: Car is inherited from Vehicle
    • 1-26
      Chapter 7: Methods
    • 1-27
      Section 7.1: Class methods
    • 1-28
      Section 7.2: Pass by value parameter passing
    • 1-29
      Section 7.3: Pass by reference parameter passing
    • 1-30
      Section 7.4: Method parameters
    • 1-31
      Section 7.5: Create a basic method
    • 1-32
      Section 7.6: Return values
    • 1-33
      Section 7.7: Calling methods
    • 1-34
      Section 7.8: Instance methods
    • 1-35
      Chapter 8: Properties
    • 1-36
      Section 8.1: Custom getters and setters
    • 1-37
      Section 8.2: Properties that cause updates
    • 1-38
      Section 8.3: What are properties?
    • 1-39
      Chapter 9: Random Integer
    • 1-40
      Section 9.1: Basic Random Integer
    • 1-41
      Section 9.2: Random Integer within a Range
    • 1-42
      Chapter 10: BOOL / bool / Boolean / NSCFBoolean
    • 1-43
      Section 10.1: BOOL/Boolean/bool/NSCFBoolean
    • 1-44
      Section 10.2: BOOL VS Boolean
    • 1-45
      Chapter 11: Continue and Break!
    • 1-46
      Section 11.1: Continue and Break Statement
    • 1-47
      Chapter 12: Key Value Coding / Key Value Observing
    • 1-48
      Section 12.1: Most Common Real Life Key Value Coding Example
    • 1-49
      Section 12.2: Querying KVC Data
    • 1-50
      Section 12.3: Collection Operators
    • 1-51
      Section 12.4: Key Value Observing
    • 1-52
      Chapter 13: NSString
    • 1-53
      Section 13.1: Encoding and Decoding
    • 1-54
      Section 13.2: String Length
    • 1-55
      Section 13.3: Comparing Strings
    • 1-56
      Section 13.4: Splitting
    • 1-57
      Section 13.5: Searching for a Substring
    • 1-58
      Section 13.6: Creation
    • 1-59
      Section 13.7: Changing Case
    • 1-60
      Section 13.8: Removing Leading and Trailing Whitespace
    • 1-61
      Section 13.9: Joining an Array of Strings
    • 1-62
      Section 13.10: Formatting
    • 1-63
      Section 13.11: Working with C Strings
    • 1-64
      Section 13.12: Reversing a NSString Objective-C
    • 1-65
      Chapter 14: NSArray
    • 1-66
      Section 14.1: Creating Arrays
    • 1-67
      Section 14.2: Accessing elements
    • 1-68
      Section 14.3: Using Generics
    • 1-69
      Section 14.4: Reverse an Array
    • 1-70
      Section 14.5: Converting between Sets and Arrays
    • 1-71
      Section 14.6: Converting NSArray to NSMutableArray to allow modification
    • 1-72
      Section 14.7: Looping through
    • 1-73
      Section 14.8: Enumerating using blocks
    • 1-74
      Section 14.9: Comparing arrays
    • 1-75
      Section 14.10: Filtering Arrays With Predicates
    • 1-76
      Section 14.11: Sorting array with custom objects
    • 1-77
      Section 14.12: Sorting Arrays
    • 1-78
      Section 14.13: Filter NSArray and NSMutableArray
    • 1-79
      Section 14.14: Add objects to NSArray
    • 1-80
      Section 14.15: Finding out the Number of Elements in an Array
    • 1-81
      Section 14.16: Creating NSArray instances
    • 1-82
      Chapter 15: NSMutableArray
    • 1-83
      Section 15.1: Sorting Arrays
    • 1-84
      Section 15.2: Creating an NSMutableArray
    • 1-85
      Section 15.3: Adding elements
    • 1-86
      Section 15.4: Insert Elements
    • 1-87
      Section 15.5: Deleting Elements
    • 1-88
      Section 15.6: Move object to another index
    • 1-89
      Section 15.7: Filtering Array content with Predicate
    • 1-90
      Chapter 16: NSDictionary
    • 1-91
      Section 16.1: Create
    • 1-92
      Section 16.2: Fast Enumeration
    • 1-93
      Section 16.3: Creating using literals
    • 1-94
      Section 16.4: Creating using dictionaryWithObjectsAndKeys:
    • 1-95
      Section 16.5: NSDictionary to NSArray
    • 1-96
      Section 16.6: NSDictionary to NSData
    • 1-97
      Section 16.7: NSDictionary to JSON
    • 1-98
      Section 16.8: Creating using plists
    • 1-99
      Section 16.9: Setting a Value in NSDictionary
    • 1-100
      Section 16.10: Getting a Value from NSDictionary
    • 1-101
      Section 16.11: Check if NSDictionary already has a key or not
    • 1-102
      Section 16.12: Block Based Enumeration
    • 1-103
      Chapter 17: NSMutableDictionary
    • 1-104
      Section 17.1: NSMutableDictionary Example
    • 1-105
      Section 17.2: Removing Entries From a Mutable Dictionary
    • 1-106
      Chapter 18: NSDate
    • 1-107
      Section 18.1: Convert NSDate that is composed from hour and minute (only) to a full NSDate
    • 1-108
      Section 18.2: Converting NSDate to NSString
    • 1-109
      Section 18.3: Creating an NSDate
    • 1-110
      Section 18.4: Date Comparison
    • 1-111
      Chapter 19: NSURL
    • 1-112
      Section 19.1: Create
    • 1-113
      Section 19.2: Compare NSURL
    • 1-114
      Section 19.3: Modifying and Converting a File URL with removing and appending path
    • 1-115
      Chapter 20: NSUrl send a post request
    • 1-116
      Section 20.1: Simple POST request
    • 1-117
      Section 20.2: Simple Post Request With Timeout
    • 1-118
      Chapter 21: NSData
    • 1-119
      Section 21.1: Create
    • 1-120
      Section 21.2: NSData and Hexadecimal String
    • 1-121
      Section 21.3: Get NSData length
    • 1-122
      Section 21.4: Encoding and decoding a string using NSData Base64
    • 1-123
      Chapter 22: NSPredicate
    • 1-124
      Section 22.1: Filter By Name
    • 1-125
      Section 22.2: Find movies except given ids
    • 1-126
      Section 22.3: Find all the objects which is of type movie
    • 1-127
      Section 22.4: Find Distinct object ids of array
    • 1-128
      Section 22.5: Find movies with specific ids
    • 1-129
      Section 22.6: Case Insensitive comparison with exact title match
    • 1-130
      Section 22.7: Case sensitive with exact title match
    • 1-131
      Section 22.8: Case Insensitive comparison with matching subset
    • 1-132
      Chapter 23: NSRegularExpression
    • 1-133
      Section 23.1: Check whether a string matches a pattern
    • 1-134
      Section 23.2: Find all the numbers in a string
    • 1-135
      Chapter 24: NSJSONSerialization
    • 1-136
      Section 24.1: JSON Parsing using NSJSONSerialization Objective-C
    • 1-137
      Chapter 25: NSCalendar
    • 1-138
      Section 25.1: System Locale Information
    • 1-139
      Section 25.2: Initializing a Calendar
    • 1-140
      Section 25.3: Calendrical Calculations
    • 1-141
      Chapter 26: NSAttributedString
    • 1-142
      Section 26.1: Using Enumerating over Attributes in a String and underline part of string
    • 1-143
      Section 26.2: Creating a string that has custom kerning (letter spacing) editshare
    • 1-144
      Section 26.3: Create a string with text struck through
    • 1-145
      Section 26.4: How you create a tri-color attributed string
    • 1-146
      Chapter 27: NSTimer
    • 1-147
      Section 27.1: Storing information in the Timer
    • 1-148
      Section 27.2: Creating a Timer
    • 1-149
      Section 27.3: Invalidating a timer
    • 1-150
      Section 27.4: Manually firing a timer
    • 1-151
      Chapter 28: NSObject
    • 1-152
      Section 28.1: NSObject
    • 1-153
      Chapter 29: NSSortDescriptor
    • 1-154
      Section 29.1: Sorted by combinations of NSSortDescriptor
    • 1-155
      Chapter 30: NSTextAttachment
    • 1-156
      Section 30.1: NSTextAttachment Example
    • 1-157
      Chapter 31: NSCache
    • 1-158
      Section 31.1: NSCache
    • 1-159
      Chapter 32: NSUserDefaults
    • 1-160
      Section 32.1: Simple example
    • 1-161
      Section 32.2: Clear NSUserDefaults
    • 1-162
      Chapter 33: Subscripting
    • 1-163
      Section 33.1: Subscripts with NSArray
    • 1-164
      Section 33.2: Custom Subscripting
    • 1-165
      Section 33.3: Subscripts with NSDictionary
    • 1-166
      Chapter 34: Low-level Runtime Environment
    • 1-167
      Section 34.1: Augmenting methods using Method Swizzling
    • 1-168
      Section 34.2: Attach object to another existing object (association)
    • 1-169
      Section 34.3: Calling methods directly
    • 1-170
      Chapter 35: Fast Enumeration
    • 1-171
      Section 35.1: Fast enumeration of an NSArray with index
    • 1-172
      Section 35.2: Fast enumeration of an NSArray
    • 1-173
      Chapter 36: Categories
    • 1-174
      Section 36.1: Conforming to protocol
    • 1-175
      Section 36.2: Simple Category
    • 1-176
      Section 36.3: Declaring a class method
    • 1-177
      Section 36.4: Adding a property with a category
    • 1-178
      Section 36.5: Create a Category on XCode
    • 1-179
      Chapter 37: Protocols
    • 1-180
      Section 37.1: Optional and required methods
    • 1-181
      Section 37.2: Checking existence of optional method implementations
    • 1-182
      Section 37.3: Forward Declarations
    • 1-183
      Section 37.4: Conforming to Protocols
    • 1-184
      Section 37.5: Basic Protocol Definition
    • 1-185
      Section 37.6: Check conforms Protocol
    • 1-186
      Chapter 38: Protocols and Delegates
    • 1-187
      Section 38.1: Implementation of Protocols and Delegation mechanism
    • 1-188
      Chapter 39: Blocks
    • 1-189
      Section 39.1: Block Typedefs
    • 1-190
      Section 39.2: Blocks as Properties
    • 1-191
      Section 39.3: Blocks as local variables
    • 1-192
      Section 39.4: Blocks as Method Parameters
    • 1-193
      Section 39.5: Defining and Assigning
    • 1-194
      Chapter 40: XML parsing
    • 1-195
      Section 40.1: XML Parsing
    • 1-196
      Chapter 41: Declare class method and instance method
    • 1-197
      Section 41.1: How to declare class method and instance method
    • 1-198
      Chapter 42: Predefined Macros
    • 1-199
      Section 42.1: Predefined Macros
    • 1-200
      Chapter 43: Grand Central Dispatch
    • 1-201
      Section 43.1: What is Grand central dispatch
    • 1-202
      Chapter 44: Format-Specifiers
    • 1-203
      Section 44.1: Integer Example - %i
    • 1-204
      Chapter 45: Logging
    • 1-205
      Section 45.1: Logging
    • 1-206
      Section 45.2: NSLog Output Format
    • 1-207
      Section 45.3: Removing Log Statements from Release Builds
    • 1-208
      Section 45.4: Logging Variable Values
    • 1-209
      Section 45.5: Empty message is not printed
    • 1-210
      Section 45.6: Using __FUNCTION __
    • 1-211
      Section 45.7: NSLog vs printf
    • 1-212
      Section 45.8: Logging NSLog meta data
    • 1-213
      Section 45.9: NSLog and BOOL type
    • 1-214
      Section 45.10: Logging by Appending to a File
    • 1-215
      Chapter 46: Error Handling
    • 1-216
      Section 46.1: Error & Exception handling with try catch block
    • 1-217
      Section 46.2: Asserting
    • 1-218
      Chapter 47: Modern Objective-C
    • 1-219
      Section 47.1: Literals
    • 1-220
      Section 47.2: Container subscripting
    • 1-221
      Chapter 48: Singletons
    • 1-222
      Section 48.1: Using Grand Central Dispatch (GCD)
    • 1-223
      Section 48.2: Creating Singleton and also preventing it from having multiple instance using alloc/init, new
    • 1-224
      Section 48.3: Creating Singleton class and also preventing it from having multiple instances using alloc/init
    • 1-225
      Chapter 49: Multi-Threading
    • 1-226
      Section 49.1: Creating a simple thread
    • 1-227
      Section 49.2: Create more complex thread
    • 1-228
      Section 49.3: Thread-local storage
    • 1-229
      Chapter 50: Unit testing using Xcode
    • 1-230
      Section 50.1: Note:
    • 1-231
      Section 50.2: Testing a block of code or some method:
    • 1-232
      Section 50.3: Testing asynchronous block of code:
    • 1-233
      Section 50.4: Measuring Performance of a block of code:
    • 1-234
      Section 50.5: Running Test Suits:
    • 1-235
      Chapter 51: Memory Management
    • 1-236
      Section 51.1: Memory management rules when using manual reference counting
    • 1-237
      Section 51.2: Automatic Reference Counting
    • 1-238
      Section 51.3: Strong and weak references
    • 1-239
      Section 51.4: Manual Memory Management
    • 1-240
      Credits
    • 1-241
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