arathunku

def self.fetch_by_tracking_code(tracking_code)
  Domain.where(tracking_code: tracking_code).take
end

gives: (no default scopes)

"SELECT "domains".* FROM "domains" WHERE 

arathunku

• install xcape
• run: xcape -e 'Shift_L=Escape;Control_L=Control_L|G;Caps_Lock=Control_L|G'

Holding SHIFT/CTRL/CAPS keys will work as usual, simple press will work as ESC(Shift)/CTRL+G(ctrl/caps)

arathunku

var result = 
Array.prototype.slice.call(document.querySelectorAll('.semester .data')).
map(function(t) {
  var td = t.querySelectorAll('td');
  return[t.querySelector('[data-title="nazwaKursu"]').innerText,
     parseFloat(t.querySelector('[title="ocena"]').innerText, 10),
     parseFloat(td[td.length -1 ].innerText, 10) 
  ];
}).reduce(function(r, t) {
   return [r[0] + (t[1] * t[2]), r[1] + t[2]] 

arathunku

(ns rdp.core)

; Ramer-Douglas-Peucker algorithm based on http://en.wikipedia.org/wiki/Ramer-Douglas-Peucker_algorithm

(defn- dist [point start end]
  (let [num (- (* (- (first end) (first start))
                  (- (last start) (last point)))

               (* (- (first start) (first point))
                  (- (last end) (last start))))

arathunku

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.

arathunku

• README needs to tell what to edit before we connect to DB

arathunku

#/bin/bash
echo 'alias g=git' >> ~/.zshrc
g config --global alias.ca 'commit --amend --reuse-message=HEAD'
g config --global alias.ci commit
g config --global alias.cp cherry-pick
g config --global alias.cl clone
g config --global alias.co checkout
g config --global alias.f fetch
g config --global alias.b branch
g config --global alias.s status

arathunku

(ns xxx.components.progress-bar
  (:require [re-frame.core :refer [subscribe dispatch]]))

(def COLOR "rgb(178, 34, 34)")
(def VISIBLE-STYLE {:height 2 :opacity 1 :color COLOR :background-color COLOR })
(def PRGORESS-BAR-CONTAINER-STYLE {:position "fixed"
                                   :margin   0
                                   :padding  0
                                   :top      0
                                   :left     0

arathunku

(let [plot (histogram (sample-normal 20))
        render (-> plot .getPlot .getRenderer)]
    (add-histogram plot (sample-normal 20))
    ; changes color of the outline
    (.setSeriesOutlinePaint render 1 java.awt.Color/BLUE)
    
    ; does nothing, fill paint remains unchanged. ???????
    (.setSeriesFillPaint render 1 java.awt.Color/BLUE)    
    (view plot))

arathunku

words/**/*.acn
words/**/*.acr
words/**/*.alg
words/**/*.aux
words/**/*.backup
words/**/*.bbl
words/**/*.bcf
words/**/*.blg
words/**/*.brf
words/**/*.dvi