How to add object at first index of NSArray

Question

I want to add @\"ALL ITEMS\" object at the first index of NSARRAY.

Initially the Array has 10 objects. After adding, the array should contains 11 objects.

Answer 1

NSArray is not dyanamic to solve your purpose you have to use NSMutableArray. Refer the following method

- (void)insertObject:(id)anObject atIndex:(NSUInteger)index;

Answer 2

I know that we have six answers for insertObject, and one for creating a(n) NSMutableArray array and then calling addObject, but there is also this:

myArray = [@[@"ALL ITEMS"] arrayByAddingObjectsFromArray:myArray];

I haven't profiled either though.

Answer 3

Take a look at the insertObject:atIndex: method of the NSMutableArray class.To add an object to the front of the array, use 0 as the index:

[myMutableArray insertObject:myObject atIndex:0];

Answer 4

NSArray is immutable array you can't modify it in run time. Use NSMutableArray

[array insertObject:@"YourObject" atIndex:0];

Answer 5

As you are allready having 10 objects in your array,and you need to add another item at index 11...so,you must try this.... hope this helps..

NSMutableArray *yourArray = [[NSMutableArray alloc] initWithCapacity:11];
[yourArray insertObject:@"All Items" atIndex:0];

Answer 6

Swift 3:

func addObject(){
    var arrayName:[String] = ["Name1", "Name2", "Name3"]
    arrayName.insert("Name0", at: 0)
    print("---> ",arrayName)
}

Output:
---> ["Name0","Name1", "Name2", "Name3"]