50-Course

begin(c++): Resources for C++ Beginners

General

• 🌏 The official ISO C++ Get Started! page

Primers

• 🎥 Herb Sutter: (Not Your Father’s) C++
• 🎥 Beginning with C++ by Jens Weller

50-Course

export class AutomationService {
  private readonly logger = new Logger(AutomationService.name);

  constructor(
    @InjectRepository(User)
    private userRepository: Repository<User>,
    @InjectRepository(CardLog)
    private cardLogRepository: Repository<CardLog>,
  ) {}

50-Course

export class AutomationService {
  private readonly logger = new Logger(AutomationService.name);

  constructor(
    @InjectRepository(User)
    private userRepository: Repository<User>,
    @InjectRepository(CardLog)
    private cardLogRepository: Repository<CardLog>,
  ) {}

50-Course

openapi: 3.0.3
info:
  title: Loan Management API
  version: 1.0.0
  description: API documentation for Loan Management System
  contact:
    email: [email protected]
  license:
    name: MIT License
paths:

50-Course

import asyncio
import random
from contextlib import asynccontextmanager
from logging import Logger
from pathlib import Path
from typing import Annotated, Any, Callable, Dict, Iterable, List, Optional

from bs4 import BeautifulSoup
from openpyxl import Workbook
from openpyxl.utils import get_column_letter

50-Course

import asyncio
import logging
import os
import random
import time
from contextlib import asynccontextmanager
from datetime import datetime
from pathlib import Path
from typing import Annotated, Any, Callable, Dict, List, Optional

50-Course

{
    "openapi": "3.0.3",
    "info": {
        "title": "Superpool API",
        "version": "0.1.0",
        "description": "API for Superpool",
        "contact": {
            "name": "Unyte Africa LTD.",
            "url": "https://ng.unyte.africa",
            "email": "[email protected]"

50-Course

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

50-Course

50-Course