JavaScript Functions Quickly Explained

A function is a recipe. You make a function which does a few tasks. Then each time you call that function, it will execute these tasks.How do you a make a lemonade?You pour water in a glassThen mix 2–3 spoons of sugarSqueeze 1–2 slices of lemonStir it with the spoon for a minuteAnd you have it!Now when you want me to make a lemonade for you, what do you say?Do you tell me all the steps above again?You pour water in a glass..…Or assume I already know the steps, you just tell me to make a lemonade.That's it!In JavaScript or any other programming language, a function is like a recipe of certain tasks.This makes the life of a programmer much more easier.In JS we define a function like this:function makeLemonade() { let lemonade = 2 sugar + 2 lemon; return lemonade;}And the next time I need a lemonade, I just call the function like this:makeLemonade();Obviously, it's just a made up function, and don't just type it into your computer and wonder, why it's not working. It's just to illustrate the concept.

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