druchan articles - 29 total
Letting the compiler guarantee sortedness
It's not often that I wake up on a Sunday and the first thing my brain thinks of is a leetcode...
AI Productivity Kool-Aid
A polarised world is usually a disaster but the entertainment-quotient is enormous. And so, as much...
Embracing ReaderT finally
Intended audience: programmers, esp those with functional-programming background. My last outing...
A Minimal Static Blog Generator in Purescript - My Notes and Code Walkthrough
About two years ago, I decided to move my Tumblr blog to some sort of a custom-made static blog generating tool written in Purescript (a Haskell-inspired language that compiles to JS).
Claude, RTFM For Me: Building a VS Code Extension in the Age of LLMs
TLDR I built a VS Code extension for the first time using Claude's help all the way....
Advent of Code and Aesthetics
Over the last few days, I've been solving Advent of Code 2024 puzzles in Haskell. This is only my...
Windsurf vs Cursor — Initial Thoughts
In some random bout of boredom-leads-to-something, triggered by an equally random YouTube short about...
Going from Promises to Aff in Purescript
The other day, I was fooling around with an idea that has come up often in my chats with Jon Udell at...
Building mobile apps using Elm and Capacitor
Native mobile app dev is still largely object-oriented driven (Kotlin, Java etc). Languages like...
Part 3 – Build a Wordle Helper Using Elm and A Little Bit of Logic
An Elm program to help solve Wordle puzzles.
Part 2 – Build a Wordle Helper Using Elm and A Little Bit of Logic
An Elm program to help solve Wordle puzzles.
Part 1 – Build a Wordle Helper Using Elm and A Little Bit of Logic
An Elm program to help solve Wordle puzzles.
Enrich an object - Javascript Recipe
A recipe to enrich an object using some other mapping data to make data for frontend rendering more useful!
Using object-access instead of Array.find when dealing with lots of data - Javascript Recipe
Recipe to access or enrich information about a normalized data.
Piping through functions that can throw an exception - Javascript Recipe
If you're dealing with data flows or pipelines where functions can throw an exception, here's a recipe that can make writing and handling these pipelines much easier.
Safe, simple, sequential promises in Javascript
Javascript promises are a boon but they're also problematic if you don't handle errors well. This recipe tames them.
Parallel promises made simple - Javascript Tip
Making parallel promises easy to handle, process and grokkable.
Advanced switch-case / pattern-matching in Javascript
Making switch-case more robust, powerful and useful by borrowing some functional programming ideas.
Cellular Automata in Elm: Build Conway's Game of Life
In which we build the Conway's Game of Life cellular automata in Elm.
How to render a basic calendar UI in Elm
A walk-through of rendering a basic calendar UI using the Elm programming language.
Calculating the maximum profit from stocks: Purescript Leetcode Solution (Updated to use Typeclass)
In the last note posted, we "implicitly" defined some valid trades. Two data structures specifically...
Calculating the maximum profit from stocks: Purescript Leetcode Solution
Lately, I've been enjoying solving some Leetcode problems. First, the integer to roman one Then,...
Justifying a paragraph of text in Purescript: Part 3
The last part in the leetcode puzzle.
Justifying a paragraph of text in Purescript: Part 2
Part 2 of the leetcode question.
Justifying a paragraph of text in Purescript: Part 1
In which I try and come up with a logic to justify a paragraph of text and express that using Purescript.
Converting an Integer to Roman Numeral in Purescript
Decided to pick a Leetcode puzzle to solve in Purescript. I did a couple of them but here's one that...
"Should I learn Monads?"
This is written (or thought) from the perspective of a JS developer who discovered functional...
Safe vs Unsafe Javascript
TLDR: Try to catch errors early, convert errors into "data" that can safely be passed around without...
Build a useInterval hook from scratch
TL;DR: running a function repeatedly, at set intervals, is tricky in React. existing examples and...