Dołącz do tablicy w Objective-C

Question

Dołącz do tablicy w Objective-C

Szukam metody zamiany NSMutableArray na string. Czy jest coś na równi z tą metodą tablicy Ruby?

>> array1 = [1, 2, 3]
>> array1.join(',')
=> "1,2,3"

Zdrówko!

126

objective-c nsmutablearray nsarray

Author: Sophie Alpert, 2009-05-10

Source

3 answers

Metoda, której szukasz to componentsJoinedByString.

NSArray  *a = [NSArray arrayWithObjects:@"1", @"2", @"3", nil];//returns a pointer to NSArray
NSString *b = [a componentsJoinedByString:@","];//returns a pointer to NSString
NSLog(@"%@", b); // Will output 1,2,3

17

Author: Rémy,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2014-09-27 18:34:04

NSArray oznaczenie klasy :

NSArray *pathArray = [NSArray arrayWithObjects:@"here",
    @"be", @"dragons", nil];
NSLog(@"%@",
    [pathArray componentsJoinedByString:@" "]);

6

Author: Georg Schölly,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2012-07-02 18:36:30

score 266 · Accepted Answer

NSArray  *array1 = [NSArray arrayWithObjects:@"1", @"2", @"3", nil];
NSString *joinedString = [array1 componentsJoinedByString:@","];

componentsJoinedByString: połączy komponenty w tablicy za pomocą podanego ciągu znaków i zwróci reprezentację tablicy.

266

Author: Jason Coco,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2012-07-02 19:40:49