How to concatenate two mutable array in Objective C

Question

I am new in iOS and I am facing problem regarding to concatenate two mutable array

In first array I am getting value like this

<__NSArrayI 0x7f9102d7a100>(
12/05/2017,
17/05/2017,
17/05/2017,
17/05/2017,
17/05/2017,
22/05/2017,
22/05/2017,
22/05/2017,
22/05/2017,
22/05/2017,
22/05/2017,
22/05/2017,
22/05/2017,
22/05/2017,
22/05/2017,
22/05/2017,
23/05/2017,
23/05/2017
)

In Second array

<__NSArrayI 0x7f9102d7a360>(
17:12,
14:11,
14:25,
17:07,
18:11,
10:04,
10:05,
10:07,
10:53,
13:05,
16:01,
16:31,
16:38,
17:40,
17:44,
17:47,
09:38,
11:25
)

I need to show array like this

12/05/2017 17:12

How can I do this? Thanks in Advance!

Fahim Parkar · Accepted Answer · 2017-05-09 06:30:10Z

2

As simple as below.

NSMutableArray *finalArray = [[NSMutableArray alloc] init];

for (int i=0;i<firstArray.count;i++) {
    [finalArray addObject:[NSString stringWithFormat:@"%@ %@", [firstArray objectAtIndex:i], [secondArray objectAtIndex:i]]];
}

answered May 9, 2017 at 6:30

Fahim Parkar

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1 Comment

Muju Over a year ago

@FahimParker perfect solution and easy to use.Thank you.

schmidt9 · Accepted Answer · 2017-05-09 06:34:31Z

1

This way with count check

    NSArray *arr1 = @[@"12/05/2017",
                     @"17/05/2017"];
    NSArray *arr2 = @[@"17:12",
                      @"14:11"];
    NSMutableArray *result = [NSMutableArray new];

    NSAssert(arr1.count == arr2.count, @"arrays count not equal");

    for (int i = 0; i < arr1.count; i++) {
        [result addObject:[NSString stringWithFormat:@"%@ %@", arr1[i], arr2[i]]];
    }

answered May 9, 2017 at 6:34

schmidt9

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Comments

Abhishek Thapliyal · Accepted Answer · 2017-05-09 08:02:55Z

1

You can do like this also

NSMutableArray *array1 = [@[@"111",@"222"] mutableCopy]; // sample array
NSMutableArray *array2 = [@[@"333",@"444"] mutableCopy]; // sample array
NSMutableArray *array3 = [NSMutableArray arrayWithArray:array1];
[array3 addObjectsFromArray:array2];

answered May 9, 2017 at 8:02

Abhishek Thapliyal

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