NSMutableArray empty string ()

Question

i have an NSMutableArray that gives this output in the debug area:

finalArray  (
        (
    )
)

Now i want an if else statement to do something if this is the output. I tryd this:

NSArray *emptyArray = @[];
if (finalArray == nil || finalArray == emptyArray)
{
    NSLog(@"foobar");
}

How can i check if my array is this output?

If you want to check if finalArray is empty use count. Because == compares pointers, finalArray == emptyArray statement will never be true if these objects doesn't point the same address — limon
– limon, Commented Apr 30, 2014 at 13:56

riisemichi · Accepted Answer · 2014-04-30 14:37:28Z

1

Your array consists of another item (probably also an array) which is empty.

To check for that, you can use:

if(finalArray.firstObject.count == 0)
{
    NSLog(@"It's empty!");
}

answered Apr 30, 2014 at 14:37

riisemichi

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1 Comment

Thanks for your help. I changed the code a to this: if([_finalArray.firstObject count] == 0) {}

jtmayer · Accepted Answer · 2014-04-30 13:56:49Z

0

You can count the items of the array with the following code:

if([emptyArray count] == 0) {
    NSLog(@"array is empty");
}

answered Apr 30, 2014 at 13:56

jtmayer

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