[objective-c] Split an NSString to access one particular piece

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?

Objective-c:

NSString *day = [@"10/04/2011" componentsSeparatedByString:@"/"][0];

Swift:

var day: String = "10/04/2011".componentsSeparatedByString("/")[0]

Use [myString componentsSeparatedByString:@"/"]

Swift 3.0 version

let arr = yourString.components(separatedBy: "/")
let month = arr[0]

I have formatted the nice solution provided by JeremyP above into a more generic reusable function below:

///Return an ARRAY containing the exploded chunk of strings
+(NSArray*)explodeString:(NSString*)stringToBeExploded WithDelimiter:(NSString*)delimiter
{
    return [stringToBeExploded componentsSeparatedByString: delimiter];
}

Either of these 2:

NSString *subString = [dateString subStringWithRange:NSMakeRange(0,2)];
NSString *subString = [[dateString componentsSeparatedByString:@"/"] objectAtIndex:0];

Though keep in mind that sometimes a date string is not formatted properly and a day ( or a month for that matter ) is shown as 8, rather than 08 so the first one might be the worst of the 2 solutions.

The latter should be put into a separate array so you can actually check for the length of the thing returned, so you do not get any exceptions thrown in the case of a corrupt or invalid date string from whatever source you have.

Its working fine

NSString *dateString = @"10/10/2010";//Date 
NSArray* dateArray = [dateString componentsSeparatedByString: @"/"];
NSString* dayString = [dateArray objectAtIndex: 0];