0:00:01.690,0:00:04.700
Let's animate Winston[br]using the shortcuts that you just learned.

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So, here we've got Winston with his eyes

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and we've got this <i>eyeSize</i> variable.

0:00:09.952,0:00:12.750
So if we wanted to make[br]Winston's eyes get bigger

0:00:12.750,0:00:15.644
we could just say "eyeSize += 1,"

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adding one pixel to the size of the eyes

0:00:18.538,0:00:21.432
each time, and <i>whoah</i>! [br]Look at it, it's buggin' out!

0:00:21.432,0:00:24.015
Let's restart -- <i>whoah</i>! Bug out! Bug Out!

0:00:24.685,0:00:26.039
Now, that's pretty cool.

0:00:26.039,0:00:28.073
And, it turns out in programming

0:00:28.073,0:00:30.107
we actually add one to variables a lot.

0:00:30.107,0:00:32.143
Maybe while animating but also,

0:00:32.143,0:00:34.162
you'll see there's a lot of other reasons

0:00:34.162,0:00:36.451
why we add one to variables later.

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Programmers got bored [br]of writing "+= 1" all the time

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because programmers[br]get bored of silly things.

0:00:41.454,0:00:43.757
So they came up with[br]a shorter way of writing it.

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So instead of "eyeSize += 1," [br]we could just write "eyeSize++"

0:00:49.366,0:00:52.295
You see, it will do [br]exactly the same thing.

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It's just a shorter way of doing it.

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And not only do we use [br]this in programming,

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Now most programmers [br]use it in everyday speech.

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Because pretty much [br]we're all familiar with <i>++</i>.

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And it's an easy way of saying

0:01:05.132,0:01:07.315
that you're making [br]something a little bigger.

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So if we went to Winston's birthday party,

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we might say, "Oh, happy birthday[br]Winston, Winston++!"

0:01:12.619,0:01:14.662
Because Winston just got a year older.

0:01:15.465,0:01:17.556
Or if we just learned a new fact you might be like,

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"Oh, go us, intelligence++!"

0:01:21.514,0:01:23.080
That's pretty fun.

0:01:23.080,0:01:25.886
So when should you use ++ versus +=?

0:01:25.886,0:01:29.605
Well, I think for animation [br]it's cool to use +=, because then

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you can use the number scrubber[br]and you can be like,

0:01:32.136,0:01:35.064
"Whoah! Let's make it -- whoah whoah![br]That was awesome!

0:01:35.064,0:01:38.026
Let's make it really crazy,[br]really different!

0:01:38.026,0:01:41.486
Oh! (laughter) See how fun that is?

0:01:41.700,0:01:44.305
But, you know, depending [br]on what you're doing

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it might be convenient just to say "++."

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And you'll see later[br]that there's lots of times

0:01:49.931,0:01:51.694
when you might want to add one

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to variables, not just for animation,

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where the <i>++</i> operator [br]could become even more useful.

0:01:56.020,0:01:58.435
So just keep that in mind[br]when you see that ++

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and try using it in your everyday speech.