Utility

General-purpose utility functions.

identity

Returns the same value passed as the argument.

id stooge = OKV({@"name", @"moe"});
B result = _.identity(stooge) == stooge;
// => YES

identityTruthy

Returns YES if the value is truthy.

B result = _.identityTruthy(@"hello");
// => YES

B result = _.identityTruthy(@"");
// => NO

times

Invokes the iterator n times.

_.times(3, ^(I n) {
    NSLog(@"iteration %ld", n);
});
// => logs 0, 1, 2

uniqueId

Generates a globally unique ID.

S* id1 = _.uniqueId(@"contact_");
// => "contact_1"

S* id2 = _.uniqueId(@"contact_");
// => "contact_2"

result

If the property is a function, invoke it; otherwise return it.

O* obj = OKV({@"cheese", @"crumpets"},
             {@"stuff", ^{ return @"nonsense"; }});

S* result = _.result(obj, @"cheese");
// => "crumpets"

S* result = _.result(obj, @"stuff");
// => "nonsense"