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What does NS mean in IOS?
NeXTSTEP
The Foundation Kit, or just Foundation for short, is an Objective-C framework in the OpenStep specification. It provides basic classes such as wrapper classes and data structure classes. This framework uses the prefix NS (for NeXTSTEP). It is also part of Cocoa and of the Swift standard library.
What is a NS prefix?
The “NS” prefix, used for all classes and constants in the framework, comes from Cocoa’s OPENSTEP heritage, which was jointly developed by NeXT and Sun.
What is Nsobject in Swift?
The root class of most Objective-C class hierarchies, from which subclasses inherit a basic interface to the runtime system and the ability to behave as Objective-C objects.
What is NS Fullform?
The Full form of NS is Noonan Syndrome. NS is a disorder that involves unusual facial characteristics, heart defects present at birth, short stature, bleeding problems, developmental delays, and malformations of the bones of the rib cage.
What is NSString?
An NSString object encodes a Unicode-compliant text string, represented as a sequence of UTF–16 code units. The objects you create using NSString and NSMutableString are referred to as string objects (or, when no confusion will result, merely as strings). The term C string refers to the standard char * type.
Do all Swift classes inherit from NSObject?
That means all UIKit classes ultimately come from NSObject , including all of UIKit. You don’t have to inherit from NSObject in Swift, but you did in Objective-C and in fact there are some behaviors you can only have if you do inherit from it.
What is Nscopying?
A protocol that objects adopt to provide functional copies of themselves.
Why is NS 200 banned?
Pulsar 200NS is a very good machine and people loved it all over the world for its engine, looks and the competitive price. It has got a lot of appreciation, and discontinuing just because you added a semi fairing to it, WTF. Pulsar 200NS is highly customizable as well as a very good stunting machine.
What do NS mean in text?
Definition for NS NS means “Non-Smoker.” This is the most common meaning for NS on online dating sites, such as Craigslist, Tinder, Zoosk and Match.com, as well as in texts and on chat forums. NS. Definition: Non-Smoker.
What is NSTaggedPointerString?
NSTaggedPointerString is about the dynamic type of the object. Your issue is about the type you have written in your source code.
What is difference between array and NSArray?
4 Answers. 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 does @objc mean in Swift?
@objc means you want your Swift code (class, method, property, etc.) to be visible from Objective-C. dynamic means you want to use Objective-C dynamic dispatch.
What does the NS prefix mean in Swift?
Swift changes this convention, because Swift supports namespacing and it maps its core types like String to the NS equivalents. When NeXT were defining the NextStep API (as opposed to the NEXTSTEP operating system), they used the prefix NX, as in NXConstantString.
What does the NS prefix mean in Objective-C?
Objective-C is superset of C, but it doesn’t include namespaces and for the same reason above all system classes are prefixed with NS or some other strange prefix. This thing is the same of how all DirectX classes are prefixed with D3D and how all OpenGL classes are prefixed with gl.
When did Apple start using the NS prefix?
It seems that everyone agrees that the prefix NX (for NeXT) was used until 1993/1994, and Apple’s docs say: The official OpenStep API, published in September of 1994, was the first to split the API between Foundation and Application Kit and the first to use the “NS” prefix.
Which is an example of a class prefix in Xcode?
All replies. The class prefix is a prefix for class files Xcode generates when you create a project or class file. An example of a class prefix is the NS in Cocoa classes.