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All right on to the suparameter.

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Did you know that each of
the suits is included in Unicode?

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Meaning that each suit is
a character that we can type out.

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Let's start by replacing our suit and

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our print string with a dollar sign and
then brackets.

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Inside the brackets, let's call
a function that doesn't exist yet

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named getSuitChar and pass in the suit.

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Then let's use Alt+Enter
to create the function.

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And after it's created,
let's delete the brackets and

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then set this function equal to
when suit and then add brackets.

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And inside our when statement,

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let's start by checking if
the suit is equal to diamonds.

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And if it is,
Then let's return the Unicode

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character for diamonds, which is \u2666.

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Next hit command or
Ctrl+D three times to duplicate this line.

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And then let's change these extra

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diamonds to clubs, hearts and spades.

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And let's change the Unicode
characters to u2663 for

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clubs, u2665 for hearts and u2660 for

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spades, these are all in
the teacher's notes as well.

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Finally, since we're counting on this
when statement to always return something

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let's add an else.

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And if we get anything else,

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let's return a string that says
incorrect suit then let's run the app.

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And sweet, I got the ten of spades.

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My favorite.

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Last but not least,
let's deal with the face up property.

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If a card is face up,
we should be able to see it.

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But if it's face down, we shouldn't
be able to tell what card it is.

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So really, I shouldn't be able to tell
that this card is a ten of spades.

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To fix this, let's first take the face
up property out of our print string.

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Then let's add a line above the return and
type if faceUp.

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And then put our return
statement inside the brackets.

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Next let's add an else and if it's
not face up, let's return three Xs.

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Great, but before we move on, let's make
this two string function a lot smaller.

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To do that, I first need to tell you
about the ternary operator and column.

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Remember the Ternary Operator?

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It's these guys.

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They let us do a conditional
statement on only one line.

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See, the thing is,
Kotlin doesn't have a Ternary Operator.

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Instead, with Kotlin,
an if statement returns a value.

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So instead of using some weird syntax,
we can just use if and

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else like we're used to.

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So to get this down to one line,

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let's first delete the outside
brackets and then add an equal sign.

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Then, since if statements already return
values, let's delete the return keywords.

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And finally, let's get rid of the brackets
and put everything on one line.

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Awesome, our two string
function is ready for action.

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00:04:03,540 --> 00:04:07,777
Now let's give it some exercise by
printing out the entire game board instead

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of just the top card in our deck.