Re: Use of blocks
Re: Use of blocks
- Subject: Re: Use of blocks
- From: Marcelo Alves <email@hidden>
- Date: Mon, 12 Jul 2010 08:58:32 -0300
On 12/07/2010, at 04:34, Giannandrea Castaldi wrote:
> I've also looked for a solution with NSExpression and NSPredicate with
> the function min/max but if I've correctly understood the use of
> NSExpression and NSPredicate with such functions is only for CoreData.
> Thanks.
See the "Set and Array Operators" inside the "Key-Value Coding Programming Guide". Example :
@max
The @max operator compares the objects returned by sending valueForKeyPath: to each item in the receiver array passing the key path to the right of the array operator as the parameter, returning the maximum value found. The maximum value is determined using the compare: method of the objects at the specified key path. The compared property objects must support comparison with each other.
The following example returns the date of the latest transaction in the savings account:
[savingsAccount valueForKeyPath:@"email@hidden"]
:: marcelo.alves
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| | >Use of blocks (From: Giannandrea Castaldi <email@hidden>) |