How do you reverse a string in Objective C?
How do you reverse a string in Objective C?
krzysdb’s solution 47 to Reverse String in Objective-C
- #import
- @interface NSString (Reverse)
- -(NSString *) reverseString;
- @end.
- @implementation NSString (Reverse)
How do I remove special characters from a string in Objective C?
1 Answer
- Save the file extension temporarily.
- Delete the file extension.
- Remove the unwanted characters.
- Add the file extension.
What is the difference between string and NSString?
NSString : Creates objects that resides in heap and always passed by reference. String: Its a value type whenever we pass it , its passed by value. like Struct and Enum, String itself a Struct in Swift. But copy is not created when you pass.
What is Objective C used for?
Objective-C is the primary programming language you use when writing software for OS X and iOS. It’s a superset of the C programming language and provides object-oriented capabilities and a dynamic runtime.
What is an 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.
What is an NSObject?
Essentially the NSObject is the base object type in Apple development. The NSObject defines all things that are shared between all classes that extend from it: NSObject is the root class of most Objective-C class hierarchies.
Is Objective-C still used?
Although Objective-C is still supported by Apple, it has never been an open-source language.
Where is the Objective-C language used?
Objective-C is a general-purpose, object-oriented programming language that adds Smalltalk-style messaging to the C programming language. This is the main programming language used by Apple for the OS X and iOS operating systems and their respective APIs, Cocoa and Cocoa Touch.
What is the difference between NSString and string?
NSString : Creates objects that resides in heap and always passed by reference. String: Its a value type whenever we pass it , its passed by value. String is automatically bridged to Objective-C as NSString.
What is a string C programming?
A String in C is nothing but a collection of characters in a linear sequence. ‘C’ always treats a string a single data even though it contains whitespaces. A single character is defined using single quote representation. A string is represented using double quote marks. Example, “Welcome to the world of programming!”
What is the use of NSObject?
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.