Firstly, implement a function that adds two arguments together... without using
the `+` operator. I need to drill this problem. Thankfully I took a Coursera
course that taught me how to make a half-adder and a full-adder, but the
recommended solution for this is a bit more difficult.
I was always curious how hashing functions were implemented, so I read about the
"polynomial rolling hash function", and I decided implementing it would be a
good exercise. After writing that, writing a hash table was simple.
Write a function to modify an array of integers in-place such that all of the
zeroes in the array are at the end, and the order of the other integers is not
changed.
This solution operates in O(n) time instead of O(n*log(n)) time, which
surprisingly isn't *that* big of a difference...
Consider a size of n of 10M...
1) ~10s
2) ~0.5s
So, yes, the O(n*log(n)) will take 100x longer to complete, but for an enormous
input size of 10M elements, it can still complete in under a minute. The
difference between that and the second, faster, algorithm, is just 9s.
Write a function that reads a string of compressed XML and outputs the
decompressed version.
Note to self: Now that I'm growing more comfortable writing parsers, I'd like to
become equally comfortable writing pretty-printers.
After a five year hiatus, I decided to attempt to solve the famous N queens
problem again. This time, instead of modeling the chess board using a
`[[Bool]]`, I'm using `[Integer]` where the `Integer` indicates which column has
a queen. This is a bit lighter in RAM.
I could have and should have broken this change into smaller pieces, but when I
came up for air, I had changed too much, and most of the changes are
intermingled. Oh well... this is an exciting change!
Include habits for:
- Morning
- Evening
- Payday (the 25th)
- First of the Month
- First of the Year
Since the Morning and Evening routines might be a bit noisy, I'm excluding them
from the output using a flag, `include{Morning,Evening}`, which I support in the
UI to toggle their visibility.
I made *much* more progress on this app that I expected to today, and I *think*
-- short of supporting a database and a server -- I'm close to
being *completely* finished.
Wahoo!
Instead of accepting `List (String, Int)`, accept `List Strategy` where
`Strategy` defines whether or not the string of selectors should be applied to
the element.
I'm also renaming it `class` so I can just use `Utils.class`; `tailwind` has
little to do with the function itself.
Create UI.elm to house components like `button`, which is a simple HTML button
with `focus:outline-none` applied as a `class`, which is an accessibility
feature that I don't need for this touch-screen application.
I like this pattern more than my more opinionated patterns for UI modules in Elm
where I'd define all of the arguments as a record type (i.e. kwargs).
Use the Google Fonts API to fetch a handwritten font, which gives the app a
modicum of personality. There are more "best practices" ways to do this, such
as:
- Download the font once, and include it in the bundle
- Extend the Tailwind configure to recognize the font
- Ditch the inline <style> block
But I don't need the performance benefits that the first bullet provides. And
the second two bullets are more relevant for a larger application with more than
one font. So I think in this case, the easiest solution is best.
Also:
- Use `container` and `mx-auto` to constrain content for wide screens
Created a small MVP for digitizing my weekly habits. Much more to come.
Lots of things happening:
- Copied the boilerplate to get started
- Added a brief project-level README
- Outlined my ambitions in design.md
See README and design.md for more context on this project.
When `keybindings` requires `window-manager`, the `evil-want-integration`
warning emerges. If I remove the `evil` dependency from `window-manager`, it
resolves the issue.
I was tired of using `arandr` to manually configure my monitor positions, so I
encoded the settings in Elisp in the `display.el` module.
TL;DR:
- Drop support for `position` kwarg in `display-register` macro
- Support `coords` kwarg in `display-register`.
- `defconst` the `xrandr` arguments and command in `display-register`.
- Define `display-arrangement` macro that consumes the `xrandr` arguments that
`display-register` defines to create an interactive function,
`display-arrange-<NAME>`, which -- when invoked -- runs one xrandr command to
configure a display "arrangement".
Why didn't I configure this earlier? For years, my workflow involved checking a
buffer's major mode and then extending that major-mode's hook. Confusingly (to
me), the `major-mode` for `COMMIT_EDITMSG` is `text-mode`, and I didn't want to
disable `company-mode` for *all* `text-mode` buffers, which is what the
following would have done:
```elisp
(add-hook 'text-mode-hook (lambda () (company-mode -1))
```
Thankfully I recently invested some time into learning more about Emacs's
offline help system, `Info-mode`, so -- putting that knowledge to work -- I ran
`info-apropos` and searched "magit commit". After ~5 minutes of reading I knew
the recommended way of configuring this was to modify `git-commit-setup-hook`.
How validating!