https://github.com/47degrees/scala-exercises-v2-deck
Scala Exercises V2 Slides for Deckset
https://github.com/47degrees/scala-exercises-v2-deck
Last synced: over 1 year ago
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Scala Exercises V2 Slides for Deckset
- Host: GitHub
- URL: https://github.com/47degrees/scala-exercises-v2-deck
- Owner: 47degrees
- License: apache-2.0
- Created: 2016-02-28T21:33:21.000Z (over 10 years ago)
- Default Branch: master
- Last Pushed: 2016-08-15T21:38:29.000Z (almost 10 years ago)
- Last Synced: 2025-03-29T04:46:30.584Z (over 1 year ago)
- Size: 16.4 MB
- Stars: 4
- Watchers: 61
- Forks: 2
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
build-lists: true
footer: Scala Exercises @raulraja @47deg *V2*
slidenumbers: true
scala-exercises.org
---
*What is it?*
A browser tool to learn __Scala__ and its coolest __libs__
---
*A bit of History*
- @rafaparadela JS POC for the @47deg labs
- V1 Went Live on March 2nd, 2015
- Focused on porting Scala Koans to the web
- Social component
---
*V1 Limitations*
- Serverless
- "Evaluation" constrained to exact string matches
- Can't track user progress across devices
- Can't parse or evaluate more complex exercises
---
*V1 Stats*
- *63K* sessions
- *40%* Returning
- *180* PRs
- *50* Contributors
- *1* section completed per visit
---
*V2 Stats*
- Launched July 1st
- +3K Users
- +200 PRs closed
- +110K Evaluations so far
- Typelevel Project
---
# What's new in **V2**?
---
*Libs at a glance*
---
*Overall Progress*
---
*Lib Progress*
---
Write Exercises *with Code!*
---
Write Exercises *with Code!*
---
Write Exercises *with Code!*
---
Write Exercises *with Code!*
---
Write Exercises *with Code!*
*Real evaluation of exercises*
---
*Contributors are properly credited*
---
*Exercises Compiler Architecture*
---
*Technologies*
- **Client** [ScalaJS, Cats]
- **Server** [Play, Cats, Doobie, Monix]
- **Evaluator** [Http4s, Cats, Circe, Coursier]
---
*Client Architecture*
---
*Backend Architecture*
---
*Backend Architecture*
---
*Backend Architecture*
---
*Backend Architecture*
---
*Backend Architecture*
---
*Remote Evaluation*
Request
```json
{
"resolvers":[
"https://oss.sonatype.org/content/repositories/releases"
],
"dependencies":[
{
"groupId":"org.typelevel",
"artifactId":"cats-core_2.11",
"version":"0.4.1"
}
],
"code":"{import cats._; Monad[Id].pure(42)}"
}
```
---
*Remote Evaluation*
Response
```json
{
"msg": "Ok",
"value": "42",
"valueType": "java.lang.Integer",
"compilationInfos": {}
}
```
---
*Remote Evaluation*
Response
```json
{
"msg": "Compilation Error",
"value": null,
"valueType": null,
"compilationInfos": {
"ERROR": [
{
"message": "value x is not a member of cats.Monad[cats.Id]",
"pos": {
"start": 165,
"point": 165,
"end": 165
}
}
]
}
}
```
---
**New libs coming soon...**
-  doobie > _a pure functional JDBC layer for Scala_
-  scalacheck > _Property-based testing for Scala_
-  fpis > _Functional Programming in Scala (Red Book)_
-  circe > _JSON library for Scala_
-  fetch > _Simple & Efficient data access for Scala_
---
*Many ways to contribute*
- Write exercises for your library (Template available)
- Write exercises for libs you are using or learning about
- Improve Documentation
- Improve Evaluator Security
- Fix bugs
---
*Actively working on...*
- Improved evaluation exercises
- Support for block style exercises (Ex : Implement a type class)
- Docs, contribution guide...
- Line errors
---
*What would be coming next?*
- Allow Github organizations
- Display Platform, Section and Exercise Statistics for repo owners
- Export / Import / Run Github Gists
- Support other Exercises Format (tut)
- Any ideas?
---
*Thanks!*
[@raulraja](https://twitter.com/raulraja)
[@47deg](https://twitter.com/47deg)
Github : https://github.com/scala-exercises