ssrihari

An opinionated list of excellent Clojure learning materials

These resources (articles, books, and videos) are useful when you're starting to learn the language, or when you're learning a specific part of the language. This an opinionated list, no doubt. I've compiled this list from writing and teaching Clojure over the last 10 years.

• 🔴 Mandatory (for both beginners and intermediates)
• 🟩 For beginners
• 🟨 For intermediates

Table of contents

1. Getting into the language

joelonsql

🗺🐘 1000+ PostgreSQL EXTENSIONs

This is a list of URLs to PostgreSQL EXTENSION repos, listed in alphabetical order of parent repo, with active forks listed under each parent.

⭐️ >= 10 stars
⭐️⭐️ >= 100 stars
⭐️⭐️⭐️ >= 1000 stars
Numbers of stars might not be up-to-date.

dvanhorn

#lang racket
(define in "...")

(define (string-ref-mod xs i)
  (string-ref xs (modulo i (string-length xs))))

(define lines (call-with-input-string in port->lines))

(define (c δx δy)
  (for/sum ([x (in-range 0 +inf.0 δx)]

kimagure44

(async () => {
    const result = [];
    const entries = (await(await fetch('https://adventofcode.com/2020/day/3/input')).text()).split('\n').filter(item => item || false);
    const startTime = performance.now();
    const rowLen = entries[0].length;
    const incX = 3;
    let movRight = 0;
    let totalTree = 0;
    entries.forEach((row, index) => {
        if (movRight >= rowLen) {

mfikes

The following works in Clojure:

(keys (filter (comp odd? val) {:a 1 :b 2 :c 3}))

The docstrings for keys and vals don't indicate that you can do this. Is this accidential or intentional?

I vaguely recall Alex Miller indicating at some point that this capability was deemed useful and is intentionally allowed. Yes, this is an appeal to authority, but nevertheless, it makes a fairly convincing argument.

ryan-haskell

-- src/Api.elm
module Api exposing (Data(..), expectJson)

import Http
import Json.Decode as Json


type Data value
    = NotAsked
    | Loading

wokalski

BuckleScript friendly vim + official ocaml-lsp setup for Reason/OCaml

Prerequisite: Install esy 0.6.0.

Steps

1. Check esy version (it has to be >0.6.0)
2. Create esy.json with the following contents next to package.json:

yogthos

Introductory resources

• High level overview https://yogthos.github.io/ClojureDistilled.html
• An Animated Introduction to Clojure https://markm208.github.io/cljbook/
• Interactive tutorial in a browser https://tryclojure.org/
• Interactive exercises http://clojurescriptkoans.com/
• Clerk notebooks with introductory examples https://github.clerk.garden/anthonygalea/notes-on-clojure
• More interactive exercises https://4clojure.oxal.org/
• Lambda Island tutorials https://lambdaisland.com/
• Functional Programming with Clojure resources https://practicalli.github.io/

swlaschin

How to find F# jobs

People often ask me how to find F# jobs. I don't have any special connections to companies using F#, and I don't have any special tricks either. I wish I did!

So, given that, here's my take on F# jobs.

Job hunting

For job hunting my suggestions are:

sebmarkbage

I heard some points of criticism to how React deals with reactivity and it's focus on "purity". It's interesting because there are really two approaches evolving. There's a mutable + change tracking approach and there's an immutability + referential equality testing approach. It's difficult to mix and match them when you build new features on top. So that's why React has been pushing a bit harder on immutability lately to be able to build on top of it. Both have various tradeoffs but others are doing good research in other areas, so we've decided to focus on this direction and see where it leads us.

I did want to address a few points that I didn't see get enough consideration around the tradeoffs. So here's a small brain dump.

"Compiled output results in smaller apps" - E.g. Svelte apps start smaller but the compiler output is 3-4x larger per component than the equivalent VDOM approach. This is mostly due to the code that is usually shared in the VDOM "VM" needs to be inlined into each component. The tr