Cats

10h 39m 36s
English
Paid

Course description

We Scala programmers love abstractions and Cats is one of the most popular libraries. At the same time, Cats is notorious for having a steep learning curve. Functors, Applicatives, Semigroupals, not to mention the M word. Few people make sense of them all. For the rest of us mortals, it's a brick wall. Certainly was for me when I started.

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But it doesn't have to be. After lots of pain, I understood how this library can be fun to learn AND write with, IF - and that's a big if - you follow a clear structure and a smooth sequence. The bad news is that's tough to make. The good news is that I think (there's a good chance that) you have it in front of you.

You're looking at the only course on the web that doesn't cost an arm and a leg (and a real cat) and will get you through everything you need to know to be productive. Down to earth, hands-on, no psychobabble, and no F[_] bombs until you're ready.

This course is for Scala engineers at least at the level of the Advanced Scala course. By the end of this course, you'll be able to use any Cats feature without any problems.

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# Title Duration
1 Welcome 08:16
2 How to Make the Best Out of This Cours 02:33
3 Scala Essentials Recap 31:59
4 Scala Implicits Recap 25:49
5 Type Classes 14:33
6 Introduction to Cats 18:27
7 Type Classes and Variance 22:04
8 Semigroups 00:00
9 Monoids 00:00
10 Functors 28:43
11 Monads, Part 1 00:00
12 Monads, Part 2 00:00
13 Using Monads 35:10
14 Custom Monads 36:04
15 Monad Transformers 33:45
16 Readers 28:57
17 Writers 25:59
18 Evaluation 28:37
19 State 31:56
20 Data Validation, Part 1 16:01
21 Data Validation, Part 2 20:50
22 Semigroupal 23:49
23 Applicative 20:00
24 Weaker Applicatives: Apply 15:47
25 Weaker Monads: FlatMap 13:12
26 Handling Errors 29:24
27 Folding 21:28
28 Traversing, Part 1 21:28
29 Traversing, Part 2 21:54
30 Kleisli 17:16
31 Contravariant 21:00
32 Invariant 24:04
33 You ROCK! 00:31

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