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Transducers and Reducers

Notes and examples of Transducers and Reducers

Reducers

• Used on collections

• Eager evaluation only. (not lazy)

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Clojure does Objects Better

A hopefully short and concise explanation as to how Clojure deals with Objects. If you already write Clojure, this isn't for you.

You know what an Interface is if you write/read Java or PHP 5+. In Clojure it might be called defprotocol.

user> (defprotocol IABC
        (also-oo [this])
        (another-fn [this x]))

IABC

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Om and React.js Does It Better

A hopefully short and concise explanation as to how Om/React.js works. This probably isn't for you if you already use ClojureScript or Om.

The front end and JavaScript God known as David Nolen created a ClojureScript library called Om. Om is a front end library that uses React.js and makes web MVC not just obsolete, but an anti-pattern.

In Om there's just the data and the view.

1. data =>

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Clojure Style String Conversion

(def example-str "anExampleSTRINGthatCanBeConverted")

(defn conversion-handler [x]
  (let [r clojure.string/replace]
    (-> x        
        (r #"[a-z]{1}[A-Z]{1}"
 (fn [x]

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(defn current-web-port []
  (as-> js/document x
    (-> x .-URL str)
    (or (re-find #":(\d+)/" x)
        (re-find #":(\d+)" x))
    (or (last x) 80)))

(defn current-domain [] (.-domain js/document))

(defn websocket-path [& [path]]

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(require
 '[cljs.repl :as repl]
 '[cljs.repl.node :as node])

(compile 'cljs.repl.node)

(repl/repl* (node/repl-env)
            {:output-dir "out"
             :optimizations :none
             :cache-analysis true

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Contents

• Why care about Rust?
• The Toolchain
• Creating a New Project
• Modules
• Crates
• Types
• References
• Mutability

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(defn object->clj
  "My personal utility for converting NodeJS objects. 
Somtimes js->clj doesn't work..."
  [object]
  (let [props (.keys js/Object object)
        ret (transient {})]
    (amap props
          idx
          _
          (let [prop (aget props idx)]

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# Arch Linux Install dpkg

yaourt -S dpkg

# Fetch Latest

wget -O latest.html -k https://downloads.iridiumbrowser.de/ubuntu/pool/main/i/iridium-browser/

# Find AMD64 Packages

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find ./ -type d -maxdepth 1 -iname '.*' -exec echo {}/* \; | sed s/\\.\\///g | sed s/^\\/\\*//g > .gitignore 
git add .gitignore
git add .