Question

i have structured an NSMutableArray and here is an example

(
{
Account = A;
Type = Electricity;
},
{
Account = B;
Type = Water;
},
{
Account = C;
Type = Mobile;
} )

when i try to delete Account B using

[data removeObject:@”B”];

Nothing Happens

[[NSUserDefaults standardUserDefaults] synchronize];
NSArray *archivedArray = [NSKeyedUnarchiver unarchiveObjectWithFile:[self dataFilePath]];
if (archivedArray == nil) {
    data = [[NSMutableArray alloc] init];           
} else {
    data = [[NSMutableArray alloc] initWithArray:archivedArray];
}

Answer 1

If you’re actually using an array and not a dictionary, you need to search for the item before you can remove it:

NSUInteger index = [data indexOfObjectPassingTest:^BOOL (id obj, NSUInteger idx, BOOL *stop) {
    return [[(NSDictionary *)obj objectForKey:@"Account"] isEqualToString:@"B"];
}];

if (index != NSNotFound) {
    [data removeObjectAtIndex:index];
}