khooyp

module Inc = Incremental_lib.Incremental.Make ()
open Inc

let make init =
    let num = 4 in
    let den_v = Var.create init in
    let den = Var.watch den_v in

    (* computes "if den = 0 then 0 else num / den" *)
    let div = bind den (fun den -> return (num / den)) in

antonshkurenko

Dagger step 1: Add android-apt, dagger 2, dagger2-compiler, and javax annotation to the build.gradle files.
Note that they're not all "compile" dependencies.

Step 2: Add our module. Our ApplicationModule will be able to inject the ApplicationContext to classes that need it.

Step 3: Add our Component.Dagger 2 generates code for each Component you create,
using the file name Dagger(NameOfComponent).
Example: DaggerApplicationComponent.
Components can have multiple modules, in our case we have one.

guillaumevincent

Guide to install PyQt5 on Mac OS X with python 3.4 virtualenv

Description

A simple guide to install PyQt5 on Mac OS X 10.9 (Maverick) and use python 3.4 on a virtualenv.

Requirements

• xcode 5.1.1
• python 3.4.0
• Qt libraries 5.2.1

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

adamjmurray

# Environment, set GEM_HOME & GEM_PATH. For example, we can launch JRuby like this:
# GEM_HOME=/Users/amurray/tmp/gems/ GEM_PATH=/Users/amurray/tmp/gems java -jar ~/Downloads/jruby-complete-1.7.0.preview1.jar -S irb

# =====================
# LISTING gems   
puts Gem::Specification.find_all.to_s
puts Gem::Specification.find_all.map{|spec| "#{spec.name} (#{spec.version})" }

# =====================
# USING (a specific version of) gems 

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname