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class MultiSingletonHelper {
  private static readonly instances: MultiSingletonHelper[] = [];

  private readonly param1: string;

  private readonly param2?: string;

  private constructor(param1: string, param2?: string) {
    this.param1 = param1;
    this.param2 = param2;

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module.exports = {
  root: true,
  extends: [
    'eslint:recommended',
    'plugin:react/recommended',
    'plugin:react-hooks/recommended',
    'plugin:react/jsx-runtime',
    'plugin:storybook/recommended',
    'plugin:import/recommended',
    'plugin:jsx-a11y/recommended',

maxgfr

Update and upgrade an ubuntu

sudo apt update && sudo apt upgrade && sudo apt full-upgrade && sudo apt dist-upgrade && sudo apt-get check && sudo apt -f install && sudo apt -y clean && sudo apt -y autoclean && sudo apt autoremove && sudo dpkg --configure -a && sudo apt --fix-broken install && sudo do-release-upgrade

maxgfr

Merge pdf together

By using qpdf

qpdf --empty --pages *.pdf -- out.pdf

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import { z } from "zod";

const envVariables = z.object({
  DATABASE_URL: z.string(),
  CUSTOM_STUFF: z.string(),
});

export const ENV = envVariables.parse(process.env);

declare global {

maxgfr

Prompts that could be useful

1. Identify the 20% of [topic or skill] that will yield 80% of the desired results and provide a focused learning plan to master it.
2. Explain [topic or skill] in the simplest terms possible as if teaching it to a complete beginner. Identify gaps in my understanding and suggest resources to fill them.
3. Create a study plan that mixes different topics or skills within [subject area] to help me develop a more robust understanding and facilitate connections between them.
4. Design a spaced repetition schedule for me to effectively review [topic or skill] over time, ensuring better retention and recall.
5. Help me create mental models or analogies to better understand and remember key concepts in [topic or skill]."
6. Suggest various learning resources (e.g., videos, books, podcasts, interactive exercises) for [topic or skill] that cater to different learning styles.
7. Provide me with a series of challenging questions or problems related to [topic or skill] to test my understan

maxgfr

export async function createUser() {

  const {user, error} = await api.createUser();
  
  if(error) {
    throw new UserError({
      name: "CREATE_USER_ERROR",
      message: "Failed to create user",
      cause: error
    })

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Watchman error

If you have an error with watchman, you can reset it by running this command

watchman watch-del-all
watchman shutdown-server

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export const nameKey = Symbol("name");

/**
 * To perserve class name though mangling.
 * @example
 * @name('Customer')
 * class Customer {}
 * @param className
 */
export function name(className: string): ClassDecorator {

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import { fileURLToPath } from 'url';

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

console.log(__dirname)