radzserg

class OrderManager {
    public createOrder(orderData) {
        (new OrderValidator).validateOrderInput(orderData);
        const total = (new OrderCalculator).calculateTotal(orderData);
        (new MyPaymentGateway).processPayment(total, { meta: "info" });
        return (new OrderRepository()).save(orderData);
    }
}

radzserg

class OrderManager {
    public async createOrder(orderData) {

        if (!orderData.items.length) {
            throw new ValidationError("Cannot create an order: cart is empty");
        }
        orderData.items.forEach((orderItem) => {
            if (orderItem.productId === undefined || orderItem.quantity === undefined || orderItem.price === undefined) {
                throw new ValidationError("Cannot create an order: product ID is missing");
            }

radzserg

<?php

// be sure to change BaseUser to inherit from Permitable
Yii::import('application.components.behaviors.ActiveRecordOriginalAttributeValuesBehavior');
Yii::import('application.components.behaviors.VendoriTimestampBehavior');

use vendori\components\clearbit\RequestQueuedException;
use Phpass\Hash as PhpassHash;
use vendori\components\ClearbitSalesReps;
use vendori\emails\RegistrationConfirmation;

radzserg

<?php 

class Yii1Model 
{
    public function rules()
    {
        // NOTE: you should only define rules for those attributes that
        // will receive user inputs.
        return array(
            // Required fields

radzserg

class DailyAttendanceReport {
  public constructor(
    private reportGenerator: DailyAttendanceReportGenerator,
    private reportSender: DailyAttendanceReportSender
  ) {}

  public generate = () => {
    const report = this.reportGenerator.generate();
    this.reportSender.send(report);
  };

radzserg

class DailyAttendanceReport {
  public constructor(
    private knex: Knex,
    private viewRenderer: ViewRenderer,
    private emailTransport: EmailTransport
  ) {}

  public generate = () => {
    const since = moment()
      .subtract(1, "days")

radzserg

class RoastedDuckReceipt {
    public cook() {
        console.log("Prepare the duck");
        console.log("Add spices");
        console.log("Roast the duck for 3 hours");
        console.log("Make a sauce");
    }
}

class CeasarSaladReceipt {

radzserg

class Cook {
  public makeDinner() {
    this.cookRoastedDuck();
    this.cookCeasarSalad();
    this.serveDrinks();
  }

  private cookRoastedDuck() {
    console.log("Prepare the duck");
    console.log("Add spices");

radzserg

class Cook {
  public makeDinner() {
    console.log("Dinner served");
  }
}

const mom = new Cook();
mom.makeDinner();

radzserg

const di: IDIContainer = configureTestDI();
const knex = di.get<Knex>(APP_DEP.DB);
const dbSeeder = di.get<DbSeeder>(APP_DEP.TEST_DB_SEEDER);
const repo = new PostsRepo(knex);

describe("PostsRepo", () => {
    // to speed up our tests and do not trash test DB 
    // we will run test in the transaction and roll it back after execution
    beforeEach(async () => {
        await knex.raw("BEGIN");