How do I copy an object value from a mutable array into a string?

Question

The array holds objects from parsed XML, but now I cannot copy the array value into a string.

How can I do this?

Some code where we can see what you are trying to do may also be helpful. — tobiasbayer
– tobiasbayer, Commented Jan 6, 2011 at 22:31

Hack Saw · Accepted Answer · 2011-04-29 03:17:17Z

1

NSNumber has a stringValue message, which returns the object as an NSString:

NSString *foo = [myNSNumber stringValue];

Alternately, if you have a primitive value like NSUInteger, or a float, you can use NSString directly:

NSUInteger nsuint = 20;
CGFloat fff = 21.0;

NSString *foo = [NSString stringWithFormat:@"%ld",(long)nsuint];

//or

NSString *foo = [NSString stringWithFormat:@"%f",fff];

Ole's question stands, however. One way to find out might be to iterate through the array asking for descriptions:

int count = 0;
for (id item in myMutableArray) {
    count +=1;
    NSLog(@"Item %d is a %@", count, [item description]");
}

This doesn't always yield intelligent results, but often does.

answered Jan 7, 2011 at 6:12

Hack Saw

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1 Comment

I've edited the format specifiers to be consistent across 32-64 bit environments as described in the String Programming Guide