gbrennon

Dependency Injection - Principles, Practices and Patterns

Book by Mark Seemann and Steven van Deursen

This document serves as a distilled summary of the book, tailored for a Node.js and TypeScript context.

Note

At the end of this summary, you will find section How We Do DI at Tactile which outlines our approach to Dependency Injection together with Clean Code and Unit Testing.

The book explores the core concepts of dependency injection, emphasising its role in promoting loose coupling, testability, and adherence to SOLID principles. It covers foundational DI patterns, anti-patterns, and advanced practices like Pure DI, lifetime management and Cross-Cutting Concerns with Aspect Oriented Programming.

gbrennon

--- mt codigo tb hehehe

local ok, copilot = pcall(require, "copilot")
if not ok then
  vim.notify("Copilot not loaded", vim.log.levels.WARN)
  return
end

copilot.setup({
  suggestion = {

gbrennon

Effective Scala Case Class Patterns

Version: 2022.02.25a

Available As

gbrennon

#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <pthread.h>

#define sensor_alto1 100;
#define sensor_alto2 150;
#define sensor_alto3 200;

gbrennon

int but;

void main()
{
    char x = 0;
    int i=0;

    bit Play;
    bit LastStatusPlay;
    bit LastStatusClear;

gbrennon

# coding: utf-8
import unittest
# Unit tests for kata 'domevent'


''' Synchronous domain events in pure Python.
#- triggering an event
#- registering a callback
#- triggering an event with 1 handler
#- triggering an event with 2 handlers

gbrennon

const BaseForm = Vue.extend({
  template: `
    <form>
      <block name="header">
        <h1>{{ title }}</h1>
      </block>
      <block name="content">Form inputs go here</block>
      <block name="actions">
        <button @click="saveRecord">Save</button>
        <button @click="deleteRecord">Delete</button>

gbrennon

{
    "completed": [
        {
            "id": "1562788901_f9750ff9-f3ae-4865-a9ea-1339d644f2f5",
            "email": "suzana@projelengenharia.com.br",
            "pending_at": 1562788901,
            "last_seen": 1562789081,
            "completed_at": 1562789081,
            "success": true,
            "reason": null,

gbrennon

# import signals and slugify
from django.db.models import signals
from django.template.defaultfilters import slugify


# function for use in pre_save
def yourmodel_pre_save(signal, instance, sender, **kwargs):
    if not instance.slug:
        slug = slugify(instance.attribute)  # change the attibute to the field that would be used as a slug
        new_slug = slug

gbrennon

Traceback (most recent call last):
  File "services.py", line 11, in <module>
    url,
  File "/Users/gbrennon/Documents/Projects/Sercortes/sercortes/env/lib/python3.6/site-packages/zeep/client.py", line 62, in __init__
    wsdl, self.transport, settings=self.settings)
  File "/Users/gbrennon/Documents/Projects/Sercortes/sercortes/env/lib/python3.6/site-packages/zeep/wsdl/wsdl.py", line 84, in __init__
    root_definitions = Definition(self, document, self.location)
  File "/Users/gbrennon/Documents/Projects/Sercortes/sercortes/env/lib/python3.6/site-packages/zeep/wsdl/wsdl.py", line 184, in __init__
    self.messages = self.parse_messages(doc)
  File "/Users/gbrennon/Documents/Projects/Sercortes/sercortes/env/lib/python3.6/site-packages/zeep/wsdl/wsdl.py", line 336, in parse_messages