co_dh

I used Claude that created a terminal based table viewer from rust first, to lean , and finally to Haskell. https://github.com/co-dh/tv-hask/tree/main

I give up rust because it’s not functional enough. There aren’t many things Claude can prove about a table viewer, and Haskell fits very well, and have enough libraries. Claude is pretty good at Haskell. I barely write Haskell before but I do know monad.

I have to warning everyone: Windows terminal with true color , possibly with tmux, is very slow. There is a half second delay from key press to response. I am in a vdi. Your miles varies.

But why do you need serialization? Because the data structure on disk is not the same as in memory. Arthur Whitney's k/q/kdb+ solved this problem by making them the same. An array has the same format in memory and on disk, so there is no serialization, and even better, you can mmap files into memory, so you don't need cache!

He also removed the capability to define a structure, and force you to use dictionary(structure) of array, instead of array of structure.

At this price(360), I may want to try glove80.

In kdb+/q, it is only 1 character ~

I wake up.

Any language with repl can have it . Python for example

A single threaded OS. I remember that sometimes I launched a slow process in emacs, and then can do nothing but wait.

What is DDD?

Q/kdb, it is practical, and you can find a good pay job with it.

Group is actually like inverse a mapping. Given an array A which map index to value, group A map value to index. A common idiom is: desc count each group A , which list most frequent element first

https://code.kx.com/q/ref/

In q/kdb. iPhone replaced q with a. Sorry

I am happily programming in a for 6 years now, and will not give it up

Me too

48 , and feel smarter than before

Sleep, exercise, chess

This is how my money get wasted.

I put semicolons at the beginning of line.

Human makes a lot of inconsistent thing: We usually think the 1st floor, and the basement as 1st underground floor ( -1), but the floor jumps from 1 to -1!

Also, the time jump from 11AM to 12PM to 1PM! So I think more human friendly sometimes means more confusing.

Is this the reason of global warming?

https://arxiv.org/abs/1803.05316

The unix command is a module system without import, and is very convenient.

It is only possible when 1) you have very simple data structure. line of text in this case. 2) each command has a lot of options, thus reduces the number of commands.

I think you might like Color Forth, which is another rabbit hole, but interesting.

github? I like the idea of using Nim to write a kernel, and is curious on what the code looks like. Especially, how do you avoid malloc?

I still prefer kakoune, and using sh as scripting language for it's simplicity.

In q/kdb, bracket for unary function application is optional, that is, f[x] is the same as f x. I found it very convenient after a while, and wish other language follows. It is very convenient to write f g h x, than f[g[h[x]]]

Also, the manual of macport is beautiful, as well as the port file.

    I'm wondering if the author can put the cost of run the query, and cost of buy/rent the hardware, software in the summery page.

    Just joking: will the version 3 called f***?
    I like the language btw.