lavalamp

There are three easy to make mistakes in go. I present them here in the way they are often found in the wild, not in the way that is easiest to understand.

All three of these mistakes have been made in Kubernetes code, getting past code review at least once each that I know of.

1. Loop variables are scoped outside the loop.

What do these lines do? Make predictions and then scroll down.

func print(pi *int) { fmt.Println(*pi) }

trevvvy

select 
	start_at AT TIME ZONE 'UTC' AT TIME ZONE 'America/Vancouver'
from
	appointments
where
	date(start_at AT TIME ZONE 'UTC' AT TIME ZONE 'America/Vancouver') = '2014-07-24';

arnested

I installed Font Awesome and uses it to make my Emacs mode line look cool:

• Use the align-left icon for auto-fill-mode.
• Use the thumbs-up and thumbs-down icons for flymake status (we need to reimplement flymake-report-status to make this happen).
• Use the tags icon for gtags-mode.

Requirements: diminish.el - I installed it from MELPA.

kyledrake

# The blog post that started it all: https://neocities.org/blog/the-fcc-is-now-rate-limited
#
# Current known FCC address ranges:
# https://news.ycombinator.com/item?id=7716915
#
# Confirm/locate FCC IP ranges with this: http://whois.arin.net/rest/net/NET-165-135-0-0-1/pft
#
# In your nginx.conf:

location / {

chaitanyagupta

Reader Macros in Common Lisp

This post also appears on lisper.in.

Reader macros are perhaps not as famous as ordinary macros. While macros are a great way to create your own DSL, reader macros provide even greater flexibility by allowing you to create entirely new syntax on top of Lisp.

Paul Graham explains them very well in [On Lisp][] (Chapter 17, Read-Macros):

The three big moments in a Lisp expression's life are read-time, compile-time, and runtime. Functions are in control at runtime. Macros give us a chance to perform transformations on programs at compile-time. ...read-macros... do their work at read-time.

hauleth

#!/bin/sh

SEP=
SEPE=

CLOCK=⌚
CALENDAR=☼
MUSIC=♫

WIDTH=${1}

gnufied

(setq enh-ruby-program "/home/gnufied/.rbenv/versions/1.9.3-p448/bin/ruby")
(autoload 'enh-ruby-mode "enh-ruby-mode" "Major mode for ruby files" t)
(add-to-list 'auto-mode-alist '("\\.rb$" . enh-ruby-mode))
(add-to-list 'auto-mode-alist '("\\.rake$" . enh-ruby-mode))
(add-to-list 'auto-mode-alist '("Rakefile$" . enh-ruby-mode))
(add-to-list 'auto-mode-alist '("\\.gemspec$" . enh-ruby-mode))
(add-to-list 'auto-mode-alist '("\\.ru$" . enh-ruby-mode))
(add-to-list 'auto-mode-alist '("Gemfile$" . enh-ruby-mode))

(add-to-list 'interpreter-mode-alist '("ruby" . enh-ruby-mode))

michaelfairley

Pong

Gosu

Libraries to use with Gosu

• Hasu
• Metro
• Gamebox
• Chingu
• Chipmunk

zilti

Sample project for the "Getting started with JavaFX in Clojure" ( https://coderwall.com/p/4yjy1a ) ProTip.

zachleat

# Outputs the reading time

# Read this in “about 4 minutes”
# Put into your _plugins dir in your Jekyll site
# Usage: Read this in about {{ page.content | reading_time }}

module ReadingTimeFilter
	def reading_time( input )
		words_per_minute = 180