Syntax
- BOOL havePlutonium = YES; // Direct assigment
- BOOL fastEnough = (car.speedInMPH >= 88); // Comparison expression
- BOOL fluxCapacitorActive = (havePlutonium && fastEnough); // Boolean expression
- id somethingWicked = [witchesCupboard lastObject]; // Retrieve untyped object
- id powder = prepareWickedIngredient(somethingWicked); // Pass and return
- if ([ingredient isKindOfClass:[Toad class]]) { // Test runtime type
