isa pointer in objective-c

Question

From this reference:

When a new object is created, memory for it is allocated, and its instance variables are initialized. First among the object’s vari

Answer 1

isa points to the class object so this would work

if(self->isa == [self class])
    NSLog(@"True");

Understanding how to use this, would have some benefits, such as introspection and tests on the class objects of the created object