ctford

(ns shades.lenses)

; We only need three fns that know the structure of a lens.
(defn lens [focus fmap] {:focus focus :fmap fmap})
(defn view [x {:keys [focus]}] (focus x))
(defn update [x {:keys [fmap]} f] (fmap f x))

; The identity lens.
(defn fapply [f x] (f x))
(def id (lens identity fapply))

paulp

# bash function
defcomp () {
  local name="$1" && shift
  local functionName="$( echo "${name}_completion" | tr - _ )"
  source <(cat <<EOM
$functionName () {
  local cur
  _get_comp_words_by_ref -n =: cur
  COMPREPLY=( \$(compgen -W "\$( $@ )" -- "\$cur") )
}

jvns

A lot of these are outright stolen from Edward O'Campo-Gooding's list of questions. I really like his list.

I'm having some trouble paring this down to a manageable list of questions -- I realistically want to know all of these things before starting to work at a company, but it's a lot to ask all at once. My current game plan is to pick 6 before an interview and ask those.

I'd love comments and suggestions about any of these.

I've found questions like "do you have smart people? Can I learn a lot at your company?" to be basically totally useless -- everybody will say "yeah, definitely!" and it's hard to learn anything from them. So I'm trying to make all of these questions pretty concrete -- if a team doesn't have an issue tracker, they don't have an issue tracker.

I'm also mostly not asking about principles, but the way things are -- not "do you think code review is important?", but "Does all code get reviewed?".

arvearve

Mathematics: What do grad students in math do all day?

by Yasha Berchenko-Kogan

A lot of math grad school is reading books and papers and trying to understand what's going on. The difficulty is that reading math is not like reading a mystery thriller, and it's not even like reading a history book or a New York Times article.

The main issue is that, by the time you get to the frontiers of math, the words to describe the concepts don't really exist yet. Communicating these ideas is a bit like trying to explain a vacuum cleaner to someone who has never seen one, except you're only allowed to use words that are four letters long or shorter.

What can you say?

domenic

The scenario:

• We are writing a digital textbook-reading app.
• Most of the time you have a "basic" license for your textbook, but one (and only one) of your computers can request an "enhanced" license.
• You can only print from the computer with the enhanced license.

The problem statement:

andrewharvey

#!/usr/bin/env python

# This script is like generate_image.py from the OSM Mapnik code,
# but it renders based on a given centre point, zoom and final image pixel size

# Author: Andrew Harvey <[email protected]>
# License: CC0 http://creativecommons.org/publicdomain/zero/1.0/
#
# To the extent possible under law, the person who associated CC0
# with this work has waived all copyright and related or neighboring

mleinart

[solarized-dark]
background = #002b36
foreground = #839496
majorLine = #fdf6e3
minorLine = #eee8d5
lineColors = #268bd2,#859900,#dc322f,#d33682,#db4b16,#b58900,#2aa198,#6c71c4
fontName = Sans
fontSize = 10
fontBold = False
fontItalic = False

paulitex

# This all assumes you have the process running in 
# a terminal screen and you're on Linux-like system.

# First off, suspend the process and background it 
ctrl-z # suspend the process
bg # restart/continue the process in the background

# Now create files to log to. They can be called anything,
# Personally I would end the in .log. E.g. could be
# /var/logs/myprocess-stdout.log,