What is an NSArray?
An object representing a static ordered collection, for use instead of an Array constant in cases that require reference semantics.
Is NSArray mutable?
It represents an ordered collection of objects. NSArray is immutable, so we cannot dynamically add or remove items.
How to define NSArray in objective c?
This lets you do some neat things like the following: NSArray * array; array = $array( @”foo”, @”bar”, $string( @”This is a %@ string”, @”formatted” ) );
What is difference between NSArray and array?
Array is a struct, therefore it is a value type in Swift. NSArray is an immutable Objective C class, therefore it is a reference type in Swift and it is bridged to Array . NSMutableArray is the mutable subclass of NSArray . Because foo changes the local value of a and bar changes the reference.
Is NSArray ordered?
The answer is yes, the order of the elements of an array will be maintained – because an array is an ordered collection of items, just like a string is an ordered sequence of characters…
What is the key difference between NSArray and NSMutableArray?
3 Answers. Show activity on this post. NSMutableArray (and all other classes with Mutable in the name) can be modified. So, if you create a plain NSArray , you cannot change its contents later (without recreating it).
What is difference between array and NSArray in IOS?
Array is a struct, therefore it is a value type in Swift. NSArray is an immutable Objective C class, therefore it is a reference type in Swift and it is bridged to Array . NSMutableArray is the mutable subclass of NSArray .
What is the difference between array and NSArray?
What is NSMutableArray Objective C?
The NSMutableArray class declares the programmatic interface to objects that manage a modifiable array of objects. This class adds insertion and deletion operations to the basic array-handling behavior inherited from NSArray . NSMutableArray is “toll-free bridged” with its Core Foundation counterpart, CFMutableArray .
What is any and AnyObject in Swift?
Any and AnyObject are two special types in Swift that are used for working with non-specific types. According to Apple’s Swift documentation, Any can represent an instance of any type at all, including function types and optional types. AnyObject can represent an instance of any class type.