Converting NSArray to NSMutableArray

Question

As above. Would be helpful to know. Thanks!

Solution 1

Here are two options:

- (NSMutableArray *)createMutableArray1:(NSArray *)array
{
    return [NSMutableArray arrayWithArray:array];
}

- (NSMutableArray *)createMutableArray2:(NSArray *)array
{
    return [[array mutableCopy] autorelease];
}

Solution 2

Use -mutableCopy and make sure to balance the retain count.

NSMutableArray *mutableArray = [[immutableArray mutableCopy] autorelease];

Solution 3

Try this one

NSMutableArray *array = [[NSMutableArray alloc]initWithArray:your_array_name];