Bajena

# app/models/post.rb
def user_lazy
  BatchLoader.for(user_id).batch do |user_ids|
    User.where(id: user_ids)
  end
end

posts = Post.where(id: [1, 2, 3]) # SELECT * FROM posts WHERE id IN (1, 2, 3)

users = posts.map { |post| post.user_lazy }

Bajena

Post.joins(:users).where(users: { country_code: 'PL' }).map { |post| post.title }   

# SELECT  "posts".* FROM "posts" INNER JOIN "users" ON "posts"."user_id" = "users"."id" WHERE "users"."country_code" = $1

Bajena

posts = Post.where(id: [1, 2, 3]).includes(:user)
# SELECT * FROM posts WHERE id IN (1, 2, 3)
# SELECT * FROM users WHERE id IN (1, 2, 3)

users = posts.map { |post| post.user }

Bajena

posts = Post.where(id: [1, 2, 3])
# SELECT * FROM posts WHERE id IN (1, 2, 3)

users = posts.map { |post| post.user }
# SELECT * FROM users WHERE id = 1
# SELECT * FROM users WHERE id = 2
# SELECT * FROM users WHERE id = 3

Bajena

#!/bin/sh

echo "Running deploy script..." &&
cd src &&
version_description=`git log --oneline -1 | cat` && # e.g. ec2ab6f My commit message
echo "Pushing code..." &&
clasp push &&
echo "Creating new version: $version_description" &&
version_number=`clasp version "$version_description" | grep -o '[0-9][0-9]*' | tail -1` &&
echo "Created version $version_number" &&

Bajena

# Javascript Node CircleCI 2.0 configuration file
#
# Check https://circleci.com/docs/2.0/language-javascript/ for more details
#
version: 2
jobs:
  build:
    docker:
      # specify the version you desire here
      - image: circleci/node:7.10

Bajena

module.exports = {
  "env": {
    "browser": true,
    "es6": true,
    "jest/globals": true
  },
  "extends": "eslint:recommended",
  "parserOptions": {
    "sourceType": "module",
    "ecmaVersion": 2017

Bajena

const DateUtils = require('../src/DateUtils.js');

test('getDatePart', () => {
  const date = new Date('2018-07-09');

  expect(DateUtils.getDatePart(date)).toBe('2018-07-09');
});

Bajena

var DateUtils = {
  /*
  * Converts Date object to a String containing the date part (with dashes).
  *
  * @return {String} Date part. E.g. '2018-07-10'.
  */
  getDatePart: function(dateObject) {
    return dateObject.toISOString().slice(0, 10);
  }
}

Bajena

//...

function getData(request) {
  // ...

  var startDate = request.dateRange.startDate;
  var endDate = request.dateRange.endDate;

  var cache = new DataCache(CacheService.getUserCache(), startDate, endDate);
  var plays = null;