First Class Functions in JavaScript

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JavaScript has first-class functions. This means functions can be treated like other values, which turns out to be incredibly important behavior to understand as you advance as a JavaScript developer. The following three bullets represent important first-class function behavior:
- Functions can be assigned to variables
- Functions can be passed as arguments to other functions
- Functions can be returned from other functions

[@punklast447]

You helped me so much dude with writing my functional programming paper by letting me understand first-class functions better

[@zacharysain9550]

Wish you'd spent more time explaining the last part.

[@alperenozkan]

We are waiting for the next tutorials. Good job bro👍🏻

[@rahulrockz8354]

yeah thats great job Man !! i was searching for this all around and u know this is Worth Watching !! Please add more videos on javascript ur way of clear and easy explaination can earn u more subscribers :) btw i hit that button :p

[@bigvlogger2940]

Thanks good tutorial can you make tuts about canvas image processing computer vision with javascript

[@vuhoang3783]

First of all, thank you for the video, it's very understandable. There are 2 things I want to ask:
1. Does the second greeter() method is a callback?
2. On GreeterMarker(), is this a closure?

[@hughclarke8504]

Great job but I found the tutorial too fast especially for beginners. It gets confusing. When you know something it just rolls of the tongue. If you do a video, do it at a slower pace and assume we don't know anything.

[@devtutsco]

I appreciate the constructive criticism! I’ll make sure to pace myself for future lessons. Thanks!

[@BenjiFriedman]

In the second example, what is the syntax for passing arguments to the function being used as an argument?

[@letsgooo7713]

if you want to pass a function as an argument and make sure it will be called with specific arguments:
sayHelloToPerson(function () { return sayHello(someArgument, anotherArgument) }, "Jack");
or use an arrow function for a cleaner syntax:
sayHelloToPerson(() => sayHello(someArgument, anotherArgument), "Jack");
so instead of directly passing sayHello as an argument, we create a new anonymous function that calls sayHello with specific arguments and pass _that_ function as an argument instead

[@nagaprasad681]

98-0 great