maletor

const buffer = require('buffer');
const crypto = require('crypto');

// Demo implementation of using `aes-256-gcm` with node.js's `crypto` lib.
const aes256gcm = (key) => {
  const ALGO = 'aes-256-gcm';

  // encrypt returns base64-encoded ciphertext
  const encrypt = (str, aad) => {
    // Hint: the `iv` should be unique (but not necessarily random).

maletor

    <script type="text/javascript" src="https://maps.google.com/maps/api/js?sensor=false"></script>
    <%= include_javascripts :maptastic %>
    <script type="text/javascript">
      $j(window).load(function() {
        initializeMap();
        <% @pharmacies.each do |pharmacy| -%>
          <% unless pharmacy.lat.nil? || pharmacy.lon.nil? -%>
            // addMarker(new google.maps.LatLng(<%= pharmacy.lat -%>, <%= pharmacy.lon -%>), '<%= escape_javascript h pharmacy.name -%>', '<%= escape_javascript h pharmacy_info_window(pharmacy) -%>');
          <% end -%>
        <% end -%>

maletor

Ruby and Rails Interview Questions

Ruby

• What is a class?
• What is an object?
• What is a module? Can you tell me the difference between classes and modules?
• Can you tell me the three levels of method access control for classes and modules? What do they imply about the method?
• There are three ways to invoke a method in ruby. Can you give me at least two?
• Explain this ruby idiom: a ||= b

maletor

import { IncomingMessage } from "http";
import { Agent, request, RequestOptions } from "https";

const agent = new Agent({ keepAlive: true, timeout: 10000 });

class MissingStatusCodeError extends Error {
  constructor(public url: string) {
    super("Missing a status code");
    this.name = "MissingStatusCodeError";
    this.url = url;

maletor

#!/usr/bin/env ruby
require "nokogiri"

# opens every file in the given dir tree and converts any html img tags to rails image_tag calls
#
# example usage: 
# ruby convert.rb ~/my_rails_app/app/views
#
# ***be careful and backup before using this***
#

maletor

require "benchmark"
include Benchmark

values = (0..10_000_000).to_a

bm(1_000_000) do |bench|
   bench.report("map and select") do
      values.map { |x| x * 3 }.select { |x| x % 4 == 0 } 
   end
   bench.report("inject") do

maletor

Table
-----

id  msg_id  name
1  |  1  |  Tom
2  |  1  |  Dick
3  |  1  |  Harry
4  |  2  |  Tom
5  |  2  |  Dick
6  |  3  |  Tom

maletor

annotation
class Annotation < ActiveRecord::Base
  belongs_to :image, :class_name => "Comment:Image"
  include_root_in_json = false
end

comment
class Comment::Image < Asset
  versioned
  has_attached_file :attachment, :styles => { :small => "200x150>", :large => "400x300>" }

maletor

(byebug) Survey::Token.find_by(token: params[:token], survey_id: @@survey)
nil
(byebug) Survey::Token.where(token: params[:token], survey_id: @@survey).take
#<Survey::Token id: 49078,

maletor

require 'oauth'
require 'oauth2'

class ContactImporter
  def initialize(importer)
    @importer = importer
  end

  def authorize_url
    case @importer