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Nigel Bunyan
Nigel Bunyan

Total Post:20

Posted on    July-15-2015 12:50 AM

 iPhone iPhone  Ios  Objective C 

 1 Reply(s)
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I have a string called alpha.

alpha= @"pie"

I have 3 arrays that were added into a master array called "ALL WORDS"

array 1 = [nsarray alloc]initwithobjects @"cake", @"donut"];

array 2 = [nsarray alloc]initwithobjects @"cream", @"pie"];

array 3 = [nsarray alloc]initwithobjects @"rice", @"flour"];



    allwords = [NSMutableArray array];

    [allwords addObjectsFromArray:array1];

    [allwords addObjectsFromArray:array2];

    [allwords addObjectsFromArray:array3];

So now I am doing a for loop like this

 for (int i = 0; i < [allWords count]; i++)


        NSString *takestring =[allWords objectAtIndex:i];

        if ( [takestring is equal to alpha]) {

           //tell which array alpha or takestring came from????           



My question is, how can I determine which array the pie came from. in the app people might have new words that I might not know, but i want to be able to detect where that string what array is it from?

Anybody knows how I can do this??

Tarun Kumar

Total Post:210

Posted on    July-15-2015 12:54 AM

You should not merge array as per your description. instead you should use something like below.


@interface aViewController ()
@property (nonatomic, strong) NSMutableArray *allwords;

@implementation aViewController
- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.

    NSArray *array1 = [[NSArray alloc] initWithObjects:@"cake",@"donut", nil];
    NSArray *array2 = [[NSArray alloc] initWithObjects:@"cream", @"pie", nil];
    NSArray *array3 = [[NSArray alloc] initWithObjects:@"rice", @"flour", nil];
    self.allwords = [[NSMutableArray alloc] initWithObjects:array1, array2,

array3, nil];

    [self findMyArray:self.allwords];

- (void) findMyArray:(id)array {
   if ([array isKindOfClass:[NSArray class]] ||

[array isKindOfClass:[NSMutableArray class]]) {

       for (NSArray *temp in array) {
           for (NSString *str in temp) {
               if ([str isEqualToString:@"pie"]) {

// define @"pie" as per your requirement
                  NSLog(@"THE ARRAY WHICH CONTAIN PIE IS %@", temp);


Using this you can simply find your array which contains specific string.


Modified On Jul-15-2015 08:42:28 AM

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