Collection <__NSArrayM: 0x7fa1f2711910> was mutated while being enumerated

Question

There are number of questions with similar title but none them of helped me.

but i can relate solution of this 'NSGenericException', reason: Collection <

Answer 1

You cannot delete items from a NSMutableArray while iterating it.

There are several solutions to this:

• Iterate a copy of the array

or

• Use an index-based for loop instead of the for each syntax.

Not copying the array saves you an allocation and a few CPU cycles:

for (int i = updatedLocalityArray.count-1 ; i >= 0 ; i--)
{
    NSString *test = updatedLocalityArray[i];
    if ([test isEqualToString:tableViewCell.textLabel.text])
    {
        [updatedLocalityArray removeObjectAtIndex:i];
        NSLog(@"%@ *****", updatedLocalityArray);
    }
}