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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

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(ns buzzlabs.scraper.actions
  (:require
    [com.wsscode.pathom3.connect.built-in.resolvers :as pbir]
    [com.wsscode.pathom3.interface.eql :as p.eql]
    [com.wsscode.pathom3.interface.async.eql :as pa.eql]
    [com.wsscode.pathom3.connect.indexes :as pci]
    [com.wsscode.pathom3.connect.operation :as pco]
    [com.wsscode.pathom3.interface.smart-map :as psm]

    [com.wsscode.pathom3.connect.built-in.resolvers :as pbir]

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(ns example.core
  (:require [messenger.core :as msg]
            [cljs.core.async :refer [<!]])
  (:require-macros [messenger.macros :refer [deflistener]]
                   [cljs.core.async.macros :refer [go]]))

; Define an iframe to communicate with.
(def iframe (js/document.getElementById "iframe"))

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Code Review

Checklist

• Names (Variables, Functions, Class)
• Loops com complexidade linear O(n) ao invés de O(n²)
• Queries sequenciais sem dependência
• Criação de índice somente com concurrently: true
• Adicionar coluna com defaultValue mesmo que seja null para evitar lock.

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    public static void delete(final Git git, final String branchName, final String path,
            final String name, final String email, final String message, final TimeZone timeZone, final Date when) {
        commit(git, branchName, path, null, name, email, message, timeZone, when);
    }

    public static void commit(final Git git, final String branchName, final String path, final File file,
            final String name, final String email, final String message, final TimeZone timeZone, final Date when) {

        final String gitPath = fixPath(path);

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Introductory resources

• High level overview https://yogthos.github.io/ClojureDistilled.html
• Interactive exercises http://clojurescriptkoans.com/
• Community-powered Clojure courses https://clojurecademy.com/
• Interactive book https://www.maria.cloud/
• Interactive workbook http://viewer.gorilla-repl.org/view.html?source=github&user=lspector&repo=clojinc&path=worksheet.clj
• Clojure by example https://github.com/inclojure-org/clojure-by-example
• Clojure workshop https://github.com/friemen/cugb/blob/master/kickstart.md
• Clojure style guide https://github.com/bbatsov/clojure-style-guide

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tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a