Vasco Ferreira vascoferreira25

Getting Started with Clojure on Windows

Clojure is an amazingly powerful language. Using it (and watching Rich Hickey videos) has changed the way I think about programming, and the way I code in general. Once I learned the basics of the language, which was a relatively quick process, I fell in love and couldn't look back. I hope this post can help others who are new to Clojure get up and running quickly and painlessly.

This post is opinionated in the sense that I'll suggest certain tools to help those who are new to this scene get on their feet. The things you'll need are:

Leiningen (pronounced LINE-ing-en) - This is like a package manager, build tool, task manager, and more in one tool. Think npm or nuget, but with more capabilities. There is at least one other build tool for Clojure (boot), but Leiningen is the most widely used.
JDK - Clojure runs on Java. Throw out any qualms you may have about Java, we aren't coding in Java (though we can through Clojure, and sometimes tha

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/

NΛNO Emacs font stack

Default font: Roboto Mono , 14pt, Light
Italic font: Victor Mono , 14pt, Semilight
Bold font: Roboto Mono , 14pt, Regular
Unicode font: Inconsolata , 16pt, Light
Icon font: Roboto Mono Nerd , 12pt, Light

Text excerpt using a gorgeous and true italic font (Victor Mono), chosen to really stand out from the default font (Roboto Mono).

	(ns mandelbrot-redo.irrelevant.ball)

	(defrecord Ball [pos-x pos-y radius vel-x vel-y])

	; Making the atom hold a list to hold multiple balls
	(def balls-atom (atom []))

	; You should prefer "->Ball" over the "Ball." constructor. The java interop form "Ball." has a few drawbacks
	; And I'm adding to the balls vector. What you had before didn't make sense.
	; You put an empty map in the atom, then immedietly overwrote it with a single ball

	/* Como executar:td:icontains
	* Abrir o site na página das faturas a classificar e abrir a consola javascript nas DevTools.
	* Copy & Paste do código js e executar para cada página
	*/

	// comparação case insensitive
	jQuery.expr[':'].icontains = function(a, i, m) {
	return jQuery(a).text().toUpperCase().indexOf(m[3].toUpperCase()) >= 0;
	};