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I want to talk to you about another way to do conditional logic, we saw the if L.F. and then the Elst

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statement.

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But there's another way called the ternary.

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Operator, now, this is still the same as the else, if or if else statements, but it's a shortcut,

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so you can only use these on certain conditional logic.

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So it doesn't mean that, hey, this is just an entirely new way.

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This is a shortcut, in a sense, for you to make your code a little bit cleaner.

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Let's have a look.

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By the way, these ternary operators can also be called conditional expressions.

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And when you hear the word expression, that should mean something to you.

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Right?

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It's an expression because it evaluates to a value.

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So a ternary operator or a conditional expression is an operation that evaluates to something based

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on the condition being true or not.

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And it's actually a new feature of Python as of version two point four.

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So let's have a look.

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The way we use this is to say is condition.

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If this is true, then do this.

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So this is the condition, if true, and bear with me here, it is a little bit confusing at first.

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We say if.

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And here we give condition.

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Otherwise condition.

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Else, all right, that is that is a little confusing, so let's go through it.

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So the EFF is going to check this condition, so it doesn't actually start with here, it's going to

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say, hey, if this condition.

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Now this is going to evaluate to their true or false.

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If it's true, then we're going to do this.

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Otherwise we're going to do this.

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So let me show you an example of how that would work.

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Let's say we're trying to determine if, well, if a user is your friend, so we'll say is friend.

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And here we can see that true or false for friend, maybe we can check on Facebook if users can message

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you or on Twitter, whether Twitter users can give you direct messages.

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Well, here and let's do can.

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Message and here we can do our ternary operator, we're going to say message aloud, if so, this is

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if the condition is true, the condition is, hey, is this person your friend otherwise condition that

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is false?

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Well, I'm going to say I'm not allowed to message.

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And you can see here that this is a one liner, though it looks like two lines.

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But you can see over here that it's not really it's just that we're wrapping so we can see the entire

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code.

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So let's run this and see what can message Prince if I run this.

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Message is allowed because, well, we've assigned message loud to can message because while the condition

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was true, if this person wasn't my friend and I run this not allowed to message because of the condition

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that if condition evaluates to false, I know the ordering here can be a little bit confusing.

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So you might have to look at it a couple of times and you do need to use it a few times to really remember

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it.

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But this is a general rule condition, if true, if condition or else condition, if not false.

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If false.

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Can't spell.

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All right, a nice shorthand way to do something when a condition is either true or false or evaluates

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to true or false.

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All right, I'll see you in the next video.

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Bye.