ankushagarwal

Managing rubies and rvm on OSX

Get rid of rvm

Unistall rvm ( if there exists one )

rm -rf ~/.rvm

Fresh install rvm

tibbon

# This creates your rails site in the directory called 'davesite'. You can replace 'davesite' with anything that starts with a letter.
rails new davesite

#Change to the davesite directory. 
cd davesite

#Logs you onto Heroku. You only really need to do this once unless you have multiple accounts
heroku login

alexymik

import cloudscraper
import pprint
import names
import time

UNSUBSCRIBE_URL = 'https://www.retailmenot.com/responsive/ajax/UnsubscribeMailerQueue.php'

APARTMENT_MAX_FLOOR = 6
APARTMENT_MAX_UNIT = 7

jodosha

require "benchmark/ips"
require_relative "./method_overloading"

class Foo
  include MethodOverloading

  def call(number)
    "foo #{number}"
  end
end

flanger001

MySQL

If the mysql2 gem fails to install, be sure your Xcode Command Line Tools are installed:

$ xcode-select --install

Then try reinstalling the gem with either of these 3 commands:

$ gem install mysql2 -- \
 --with-cflags=\"-I$(brew --prefix)/opt/openssl/include\" \

jcasimir

Render and Redirect

The normal controller/view flow is to display a view template corresponding to the current controller action, but sometimes we want to change that. We use render in a controller when we want to respond within the current request, and redirect_to when we want to spawn a new request.

Render

The render method is very overloaded in Rails. Most developers encounter it within the view template, using render :partial => 'form' or render @post.comments, but here we'll focus on usage within the controller.

:action

leostratus

An ongoing project to catalogue all of these sneaky, hidden, bleeding edge selectors as I prepare my JSConf EU 2012 talk.

Everything is broken up by tag, but within each the selectors aren't particularly ordered.

I have not tested/verified all of these. Have I missed some or got it wrong? Let me know. - A

A friendly reminder that you may need to set this property on your target/selected element to get the styling results you want:

-webkit-appearance:none;

p3t3r67x0

Styling native elements

Native HTML controls are a challenge to style. You can style any element in the web platform that uses Shadow DOM with a pseudo element ::pseudo-element or the /deep/ path selector.

video::webkit-media-controls-timeline {
  background-color: lime;
}

video /deep/ input[type=range] {

gbuesing

UPDATE a fork of this gist has been used as a starting point for a community-maintained "awesome" list: machine-learning-with-ruby Please look here for the most up-to-date info!

Resources for Machine Learning in Ruby

Gems

• liblinear-ruby: Ruby interface to LIBLINEAR using SWIG

zkat

#!/usr/bin/env node

console.log('yay gist')