gosukiwi

# some model
serialize :my_field, Array

ransacker :my_field_raw, type: :string do
  Arel.sql('my_table.my_field')
end


# some view (using simple form)
= search_form_for @q, builder: SimpleForm::FormBuilder do |f|

gosukiwi

# This makes sure UTF8 characters don't break the encoding/decoding. For
# more info: https://developer.mozilla.org/en-US/docs/Web/API/WindowBase64/Base64_encoding_and_decoding
#
App.Lib.Base64 =
  encode: (str) ->
    window.btoa unescape(encodeURIComponent(str))

  decode: (str) ->
    decodeURIComponent escape(window.atob(str))

gosukiwi

class Token
  attr_reader :type, :value
  def initialize(type:, value:)
    @type = type
    @value = value
    raise InvalidTokenError if value.nil? || type.nil?
  end

  def self.null
    NullToken.new

gosukiwi

Sed Cheatsheet

Sed is a non-interactive line-based text editor. It can perform an edition in either file or STDIN and print it in STDOUT, which can later be redirected to a file it needed.

CLI options

-e  Editing instructions follows
-f  File name of script follows
-n  Supress automatic output of lines
-i  Extension - Edit files in-place, saving backups with the specified extension.  

If a zero-length extension is given, no backup will be saved.

gosukiwi

;; a plist associating keywords with functions
(defvar *commands*
  '(:title title-command))

(defun title-command (params)
  (format t "Title command function. Params: ~A" params))
  
;; I want to read the keyword from the CLI, but it's a char array
;; how can I cast it to keyword?
(apply (getf *commands* (read-line)) '(1 2 3))

gosukiwi

class SentenceVisitor
  SENTENCE_VISITORS = {
    "BOLD"     => BoldVisitor,
    "EMPHASIS" => EmphasisVisitor,
    "TEXT"     => TextVisitor
  }.freeze

  def visit(node)
    visitor_for(node).visit(node)
  end

gosukiwi

# frozen_string_literal: true

begin
  require "bundler/inline"
rescue LoadError => e
  $stderr.puts "Bundler version 1.10 or later is required. Please update your Bundler"
  raise e
end

gemfile(true) do

gosukiwi

# app/controllers/books_controller.rb
class BooksController < ApplicationController
  include HelperMethods::BooksController
  
  def index; end
  def show; end
end

# app/controllers/helper_methods/books_controller.rb
module HelperMethods

gosukiwi

# Model

expect(@user).to have(1).error_on(:username) # checks whether there is an error in username
expect(@user.errors[:username]).to include("can't be blank") # check for the error message

# Rendering

expect(response).to render_template(:index)

# Redirecting

gosukiwi

" [ CORE ] ------------------------------------------------------------------
"  Very much needed settings to provide a solid base for source code editting
"  DEPENDENCIES:
"  - vim-plug: For managing plugins
"  - ag: The silver searcher
"  - editorconfig: For projects where common configuration is important
"  - SourceCodePro: Pretty font for coding
" ---------------------------------------------------------------------------
 
" don't make vim compatible with vi