You define the callback like this

Screen Shot 2017-08-31 at 8.31.52 AM.png

You pass it using the arrow functions like this

Screen Shot 2017-08-31 at 8.32.28 AM.png

You set it’s parameter values like this:

Screen Shot 2017-08-31 at 8.35.38 AM.png

You pass it to other components and functions like this

Screen Shot 2017-08-31 at 8.33.10 AM.png

And you add it to your controls like this

Screen Shot 2017-08-31 at 8.33.43 AM.png

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