CODEWITHSUNDEEP
iosnsmutablearray
Mughees Musaddiq
Mughees Musaddiq

Reputation: 1060

Append an object in an array

I want to append an object in an array.

For example,

 NSMutableArray *array = [[NSMutableArray alloc]init];
    for (int i=0; i<5; i++)
    {
        [array addObject:@[@"Any"]];
    }

It gives an output like this:

array: (
        (
        Any
    ),
        (
        Any
    ),
        (
        Any
    ),
        (
        Any
    ),
        (
        Any
    )
)

Now I want to append object at index 3 of an array so that it could appear like below:

array: (
            (
            Any
        ),
            (
            Any
        ),
            (
            Any
        ),
            (
            Any, Where, How, When
        ),
            (
            Any
        )
    )

Upvotes: 0

Views: 84

Answers (3)

nicael
nicael

Reputation: 19024

If I understand you...

[array replaceObjectAtIndex:2 withObject:@[[[array objectAtIndex:2] firstObject],@"Where",@"How",@"When"]];

Upvotes: 1

Lebyrt
Lebyrt

Reputation: 1340

Try this:

NSMutableArray *array = [NSMutableArray new];
for (int i=0; i<5; i++)
{
    [array addObject:[NSMutableArray arrayWithObject:@"Any"]];
}
NSLog(@"%@", array);

NSMutableArray *subArray = [array objectAtIndex:3];
[subArray addObjectsFromArray:@[@"Where", @"How", @"When"]];
NSLog(@"%@", array);

Note, @[] creates an instance of NSArray class which cannot be modified later. You can modify only instances of NSMutableArray class.

Upvotes: 0

Apurv
Apurv

Reputation: 17186

Use function insertObjectAtIndex to achieve it.

[array insertObject:anObject atIndex:2];

Upvotes: 1

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