dhairyagabha

Rails & Trix: Add Underline, Superscript, and Subscript

This guide will walk you through adding some extra features such as the ability to underline your text, or enhance your content by adding superscripts or subscripts for annotations or Math equations.

Prerequisites: Instruction guide assumes that you have created a Rails application and installed ActionText.

What will you learn:

• Add action_text initializer file
• Add and compile Javascript for Trix Customization

giannisp

After automatically updating Postgres to 10.0 via Homebrew, the pg_ctl start command didn't work.
The error was "The data directory was initialized by PostgreSQL version 9.6, which is not compatible with this version 10.0."

Database files have to be updated before starting the server, here are the steps that had to be followed:

# need to have both 9.6.x and latest 10.0 installed, and keep 10.0 as default
brew unlink postgresql
brew install postgresql@9.6
brew unlink postgresql@9.6
brew link postgresql

shiroyasha

class Dog 
  attr_writer :name

  def initialize(name)
    @name = name
  end 

  def bark
    puts "patrick"
  end

ohanhi

This is a proposal for a lightning talk at the Reactive 2015 conference.

NOTE: If you like this, star ⭐ the Gist - the amount of stars decides whether it makes the cut!

The Joy of Composition

Why stateless rendering is pure bliss

React just got stateless components, meaning that they are in essence pure functions for rendering. Pure functions make it dead simple - even fun - to refactor your views

danielgtaylor

Moving to ES6 from CoffeeScript

I fell in love with CoffeeScript a couple of years ago. Javascript has always seemed something of an interesting curiosity to me and I was happy to see the meteoric rise of Node.js, but coming from a background of Python I really preferred a cleaner syntax.

In any fast moving community it is inevitable that things will change, and so today we see a big shift toward ES6, the new version of Javascript. It incorporates a handful of the nicer features from CoffeeScript and is usable today through tools like Babel. Here are some of my thoughts and issues on moving away from CoffeeScript in favor of ES6.

While reading I suggest keeping open a tab to Babel's learning ES6 page. The examples there are great.

Punctuation

Holy punctuation, Batman! Say goodbye to your whitespace and hello to parenthesis, curly braces, and semicolons again. Even with the advanced ES6 syntax you'll find yourself writing a lot more punctuatio

mdwheele

1. Run the following in your terminal.

defaults write com.apple.BluetoothAudioAgent "Apple Bitpool Max (editable)" 80
defaults write com.apple.BluetoothAudioAgent "Apple Bitpool Min (editable)" 80
defaults write com.apple.BluetoothAudioAgent "Apple Initial Bitpool (editable)" 80
defaults write com.apple.BluetoothAudioAgent "Apple Initial Bitpool Min (editable)" 80
defaults write com.apple.BluetoothAudioAgent "Negotiated Bitpool" 80
defaults write com.apple.BluetoothAudioAgent "Negotiated Bitpool Max" 80
defaults write com.apple.BluetoothAudioAgent "Negotiated Bitpool Min" 80

afcapel

# lib/tasks/assets.rake
namespace :assets do
  task :precompile_if_needed do
    require_relative '../assets_version'
 
    next unless AssetsVersion.needs_precompile?
 
    Rake::Task["assets:precompile"].invoke
    AssetsVersion.current.save_to_yaml
  end

CalvinHarrisUK

= Retail Graph =
 
The significant functional differentiation of Neo4j in the retail space is the ability to quickly traverse interconnected datasets and make recommendations in “real time”.  Competing approaches require large batch processing activities done offline to compute recommendations against large aggregate datasets, usually as nightly routines.  Others attempt to parameterize or profile products and users, leaving the connection of interests and products simply to keyword matching and categorization. These methods produce results that can quickly become stale and outdated if they are not done frequently and lack flexibility and capabilities to dynamically change . 
 
:neo4j-version: 2.0.1
:author: Amanda
:twitter: @pandamonial
:tags: domain:Retail
 

demisx

belongs_to:

1. Assigning an object to a belongs_to association does not automatically save the object. It does not save the associated object either.

has_one:

1. When you assign an object to a has_one association, that object is automatically saved (in order to update its foreign key).
2. In addition, any object being replaced is also automatically saved, because its foreign key will change too
3. If either of these saves fails due to validation errors, then the assignment statement returns false and the assignment itself is cancelled.
4. If the parent object (the one declaring the has_one association) is unsaved (that is, new_record? returns true) then the child objects are not saved. They will automatically when the parent object is saved.

mpolden

# files/env:
Defaults env_keep += "SSH_AUTH_SOCK"

# tasks/main.yml
- name: ensure sudo keeps SSH_AUTH_SOCK in environment
  copy: src=env
        dest=/etc/sudoers.d/env
        mode=0440
        owner=root
        group=root