nsstring

I have a string like this: @"10/04/2011" and I want to save only the "10" in another string. How can I do that? NSArray* foo = [@"10/04/2011" componentsSeparatedByString: @"/"]; NSString* firstBit = [foo objectAtIndex: 0]; Update 7/3/2018: Now that the question has acquired a Swift tag, I should add the Swift way of doing this. It's pretty much as simple: let substrings = "10/04/2011".split(separator: "/") let firstBit = substrings[0] Although note that it gives you an array of Substring . If you need to convert these back to ordinary strings, use map let strings = "10/04/2011".split(separator

I'm trying to ultimately have an NSMutableURLRequest with a valid HTTPBody , but I can't seem to get my string data (coming from a UITextField ) into a usable NSData object. I've seen this method for going the other way: NSString(data data: NSData!, encoding encoding: UInt) But I can't seem to find any documentation for my use case. I'm open to putting the string into some other type if necessary, but none of the initialization options for NSData using Swift seem to be what I'm looking for. In Swift 3 let data = string.data(using: .utf8) In Swift 2 (or if you already have a NSString instance)

I need to remove spaces from the end of a string. How can I do that? Example: if string is "Hello " it must become "Hello" Dan Use -stringByTrimmingCharactersInSet: NSString *string = @" this text has spaces before and after "; NSString *trimmedString = [string stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]]; (This will trim whitespace characters on both ends). Swift 3 let string = " this text has spaces before and after " let trimmedString = string.trimmingCharacters(in: .whitespacesAndNewlines) Matt H. Another solution involves creating mutable string: /

What is the difference between these two lines? NSString * string = @"My String"; NSString * string = [[[NSString alloc] initWithString:@"MyString"] autorelease] @"My String" is a literal string compiled into the binary. When loaded, it has a place in memory. The first line declares a variable that points to that point in memory. From the string programming guide: The simplest way to create a string object in source code is to use the Objective-C @"..." construct: NSString *temp = @"/tmp/scratch"; Note that, when creating a string constant in this fashion, you should avoid using anything but 7

A "quicky": how can I get the size (width) of a NSString? I'm trying to see if the string width of a string to see if it is bigger than a given width of screen, case in which I have to "crop" it and append it with "...", getting the usual behavior of a UILabel. string.length won't do the trick since AAAAAAAA and iiiiii have the same length but different sizes (for example). I'm kind of stuck. Thanks a lot. nevan king This is a different approach. Find out the minimum size of the text so that it won't wrap to more than one line. If it wraps to over one line, you can find out using the height.