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Kieran Corcoran11,188 Points
Not sure how to ask this, but here goes.
Can someone tell me why we pass the argument in the parenthesis when using parseInt(), but when using different methods like toUpperCase() we do not pass it a argument.
Can it work this way round? if not why is this? someVariable.parseInt(); toUpperCase(someVariable);
Steven Parker217,572 Points
The "dot" notation selects a method that is associated with object named on the left. In a sense, the item to the left of the dot acts as the first argument to the method. But the implementation is different and not interchangeable.
This may seems a bit confusing at first, but it should become clear when you get further into the classes covering objects and methods. So for now remember that a method must be applied (using dot notation) to an object, but an ordinary function cannot be.