hendryfoe

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

hendryfoe

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "your_email@youremail.com"

hendryfoe

Problem

I have two Github accounts: oanhnn (personal) and superman (for work). I want to use both accounts on same computer (without typing password everytime, when doing git push or pull).

Solution

Use ssh keys and define host aliases in ssh config file (each alias for an account).

How to?

1. Generate ssh key pairs for accounts and add them to GitHub accounts.

hendryfoe

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

---

General rules

1. Follow standard conventions.
2. Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
3. Boy scout rule. Leave the campground cleaner than you found it.
4. Always find root cause. Always look for the root cause of a problem.

Design rules

hendryfoe

# https://www.freecodecamp.org/news/how-to-search-files-in-the-linux-terminal/

find -name <file_name>

# find file by "case-insensitive"
find -iname <file_name>

# find file by "regex / pattern"
find /path/to/search -name "*.txt"

hendryfoe

'use client';

import { type LinkProps } from 'next/link';
import { useRouter } from 'next/navigation';
import cn from 'classnames';

type LinkPropsReal = React.PropsWithChildren<
  Omit<React.AnchorHTMLAttributes<HTMLAnchorElement>, keyof LinkProps> & LinkProps
>;

hendryfoe

export function formatCurrency(
  value: number,
  locales: string | string[] = 'id',
  options: Intl.NumberFormatOptions = { style: 'currency', currency: 'IDR', minimumFractionDigits: 0 }
) {
  return new Intl.NumberFormat(locales, options).format(value);
}

export function formatCurrencyWithoutPrefix(value: number, locales: string | string[] = 'id') {
  return formatCurrency(value, locales, {});

hendryfoe

function chunk(items: string[], size: number) {
  const chunks = [];
  items = ([] as string[]).concat(...items);

  while (items.length) {
    chunks.push(items.splice(0, size));
  }

  return chunks;
}

hendryfoe

{
  "contact": {
    "firstName": "John",
    "lastName": "Doe",
    "phone": "+1 123 456 789",
    "email": "johndoe@mail.com",
    "linkedin": "https://www.linkedin.com/in/johndoe",
    "summary": "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat"
  },
  "experiences": [

hendryfoe

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example