andreyuhai

Source

When you download the latest version of vim-airline as .zip and unzip it to a temporary directory, you get a vim-airline-master directory in the temp directory. Inside vim-airline-master you'll find autoload, doc and plugin directories.

You should either copy these three directories to your ~/.vim/ if they don't yet exist (don't overwrite existing directories with same names!) or copy the contents of the aforementioned three directories to existing directories under ~/.vim/

andreyuhai

How to get the difference of two arrays in an Ecto fragment?

You might want to get the difference between two arrays to update a row in Postresql, in your Elixir/Phoenix app. Here I explain how to do it.

SELECT
  coalesce(
    (
      SELECT

andreyuhai

<%= form_for @changeset, @action, fn f -> %>
  <h3>Type</h3>
  <%= select f, :type, @pizza_types %>
  <%= error_tag f, :type %>

  <div class="form-group">
    <h3>Extras</h3>
    <%= for extras <- inputs_for(f, :extras) do %>
      <%= for extra <- @extras do %>
        <div>

andreyuhai

source $VIMRUNTIME/defaults.vim

set nocompatible              " be iMproved, required
filetype off                  " required

" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
" alternatively, pass a path where Vundle should install plugins
"call vundle#begin('~/some/path/here')

andreyuhai

defmodule StableMarriageProblem do
  @moduledoc """
  Implements the algorithm for stable marriage problem.
  """

  @type person_id :: integer()

  # Denotes a preference list for a single person
  @type preference_list :: [person_id(), ...]