Yuan Ji

My experience of building Elm Land project: dev.to/jiwhiz/how-to-… @ElmLand_ #elm #docker

Using ChatGPT o1 to write UI code with Elm dev.to/jiwhiz/using-c… #chatgpto1 #elm #elmland #keycloak

@coltmcnealy Usually in step 7 IdP server returns authorization code through browser redirect, and it is publicly visible, not secure. Step 8 and 9 are through https connection, so it is secure.

Help me out here— in #oauth2 why does IdP first return an auth code to the app, and then app calls IdP to exchange the authorization code for an access token+refresh token? Why not return the access token + refresh token in step 7?

My recent post: dev.to/jiwhiz/oauth-2…

Code at github.com/jiwhiz/aoc2023… Glad to use List1 and SortedMap first time!

I've completed "Haunted Wasteland" - Day 8 - Advent of Code 2023 adventofcode.com/2023/day/8 #AdventOfCode

IMO, AI will take over lots of coding jobs, because it can write crappy code much much faster than us 😉

My son played with OpenAI's ChatGPT, and wrote an article about it: github.com/calebji123/Ope… His conclusion: AI won't take over all the coding jobs 😅

Idris 2 version 0.6.0 has been released. For more details, see idris-lang.org/idris-2-versio… Enjoy!

Was teaching #PFPL chapter 38 to my son, and very puzzled by the example in 38.4, so had a little discussion with Prof Harper. So thankful he accepted by correction 😀

Update idris-2-docker and create a demo project to test it, works very well! github.com/jiwhiz/idris2-…

One of the difficulties to learn @idrislang for beginners is to setup local dev environment for Idris2. My son created a tool to make it much easier, check it out: github.com/joshuanianji/i…

He even wrote a game with Idris: github.com/calebji123/Wor…

Finished Edwin Brady's Type-Driven Development with Idris with my son together during summer break. Reading first eight chapters, I explained type theory concepts to him. Since chapter 9, he explained Idris code to me.

4.4. The calculus of adjunctions Adjoints are unique up to unique natural isomorphism; Adjunctions can be composed; Those proofs are so hard to read but also very interesting!

Category theory in context Chapter 4 Adjunctions #CategoryTheory #CategoryTheoryInContext

GitHub should allow issues to be optionally monetized. Open source is not "open customer support".

Learning math is like a roller-coaster ride: "Aha, I got it!" Next day, "Do I really understand this?"

4.3. Contravariant and multivariable adjoint functors A cartesian closed category is a category C with finite products in which the product bifunctor C × C → C is closed.

4.2. the unit and counit as universal arrows Given an adjunction F⊣G, there are two natural transformations unit η : 1 ⇒ GF counit ε : FG ⇒ 1 And they satisfy the triangle identities.

A friend asked for an explanation why "It's just Putin" is wrong and dangerous. I felt it needs a longer response. Here it is: