* Added a tip and a statement The statement says that using only 'if' is ok but 'else' and 'else if' can't be used without 'if'. And the tip column is for optimization, it is clearly explained with two examples. * Formatting
* Added a tip and a statement The statement says that using only 'if' is ok but 'else' and 'else if' can't be used without 'if'. And the tip column is for optimization, it is clearly explained with two examples. * Formatting