JavaScript the Hard Parts: Callbacks & Higher Order Functions

During this online workshop recording, Katrina will explore Callbacks and Higher Order Functions and go under-the-hood of JavaScript, so you can confidently tackle new problems and work through blocks.

We'll cover:
- Building functions like map, reduce, and filter from scratch
- Using higher order functions to keep code clean even in complex situations
- How to diagram through higher order functions and callbacks scenarios

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#learntocode #javascript #programminglanguage #callbacks #higheroderfunctions

[sonnayakanareika]

Katrina, you're fantastic teacher ! thank you!

[hananfadah]

loved the way she explained the logic!

[ShootYourShotApp]

SHE IS A REALLY REALLY GOOD TEACHER 👏🏾

[devsthefourth]

Such fantastic instruction, and great job by all the participants!

[ksecha]

Katrina is amazing! She teaches the Central Immersive program.

[m.ardaeren]

Callback functions begin at the 1 hour and 25-minute mark

[mcdthedev]

1hr 28mins we name it instructions for readability

[ee-ting]

const array = [1, 2, 3];
Const result = array.map((num) => num*2);
Console.log(result);
As mentioned, the built-in map method is a higher order function, passing in an anonymous function.
Can anyone help me understand if num is the callback function's parameter or argument?