Truong Hoang Dung revskill10

## latency.txt
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

## auth.ts
import { Alert } from "react-native";
import * as WebBrowser from "expo-web-browser";
import { useSupabaseClient } from "@supabase/auth-helpers-react";

import { initiateAppleSignIn } from "../utils/auth";

export const useAuth = () => {
  const Supabase = useSupabaseClient();

  const signInWithPassword = async (

## postgresql_is_enough.md

      
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                revskill10
                / postgresql_is_enough.md
            
            
              Created
              February 7, 2024 11:27
                — forked from cpursley/postgresql_is_enough.md
            
              
                Postgres is Enough 
              
          
    PostgreSQL is Enough


Just Use Postgres for Everything
Simplify: move code into database functions

Background and Cron Jobs


https://github.com/citusdata/pg_cron

Message Queues


## multiple-github-profiles.md

      
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                revskill10
                / multiple-github-profiles.md
            
            
              Created
              January 17, 2024 06:29
                — forked from jamiebuilds/multiple-github-profiles.md
            
          
    Multiple GitHub accounts (Work vs Personal)

This setup uses some tricks to ensure that the right email/name/ssh-key is used for the right repos without having to think about it ever again.

First generate two SSH keys, ~/.ssh/id_ed25519 and ~/.ssh/id_ed25519_work
Add one key to your personal account and the other to your work account

.ssh/config


## stage.tsx
// TODO: make `pages` optional and measure the div when unspecified, this will
// allow more normal document flow and make it easier to do both mobile and
// desktop.
import {
  createContext,
  useCallback,
  useContext,
  useEffect,
  useMemo,
  useRef,

## fourier.html
<html>
<head>
<script src="//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.4.2/underscore-min.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.min.js"></script>
<script src="//ajax.cdnjs.com/ajax/libs/json2/20110223/json2.js"></script>

<!--
TODO:

## EncryptSmallData.md

      
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                revskill10
                / EncryptSmallData.md
            
            
              Created
              December 11, 2023 07:38
                — forked from QingpingMeng/EncryptSmallData.md
            
              
                Encrypt data using JavaScript in browser with RSA public key generated in C# without library
              
          
    This is an example to demo how you generate the RSA key pair from server side(.NetCore 3.1) and pass the public key to the client(Browser) for encrypting the data that <= 245 bytes.

RSA-2048 can only support to encrypt up to 245 bytes data.

Generate RSA key pair in C# (.Net Core 3.1):

using var rsaProvider = new RSACng();
// spki is used for browser side encryption
var spki = Convert.ToBase64String(rsaProvider.ExportSubjectPublicKeyInfo());
var encodedPrivateKey = Convert.ToBase64String(rsaProvider.ExportPkcs8PrivateKey());

  
## SuspendableImage.tsx
"use client";

import { cache, unstable_postpone } from "react";
import { preload } from "react-dom";

const loadImage = cache((src: string) => {
  return new Promise<void>((resolve, reject) => {
    const img = new Image();
    img.src = src;

## recursive-rsc-stream-inline.ts
import * as React from "react";
// @ts-ignore
import * as ReactDOM from "#react-dom-server-implementation";
// @ts-ignore
import * as ReactDOMClient from "#react-server-dom-client-implementation";

export async function fetch(
	request: Request,
	{
		browserEntry,

## frontmatter.js
// helps us in parsing the frontmatter from text content
const matter = require('gray-matter')
// helps us safely stringigy the frontmatter as a json object
const stringifyObject = require('stringify-object')
// helps us in getting the reading time for a given text
const readingTime = require('reading-time')

// please make sure you have installed these dependencies
// before proceeding further, or remove the require statements
// that you don't use
	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
	import { Alert } from "react-native";
	import * as WebBrowser from "expo-web-browser";
	import { useSupabaseClient } from "@supabase/auth-helpers-react";

	import { initiateAppleSignIn } from "../utils/auth";

	export const useAuth = () => {
	const Supabase = useSupabaseClient();

	const signInWithPassword = async (
	// TODO: make `pages` optional and measure the div when unspecified, this will
	// allow more normal document flow and make it easier to do both mobile and
	// desktop.
	import {
	createContext,
	useCallback,
	useContext,
	useEffect,
	useMemo,
	useRef,
	<html>
	<head>
	<script src="//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.4.2/underscore-min.js"></script>
	<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
	<script src="//cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.min.js"></script>
	<script src="//ajax.cdnjs.com/ajax/libs/json2/20110223/json2.js"></script>

	<!--
	TODO:
	"use client";

	import { cache, unstable_postpone } from "react";
	import { preload } from "react-dom";

	const loadImage = cache((src: string) => {
	return new Promise<void>((resolve, reject) => {
	const img = new Image();
	img.src = src;
	import * as React from "react";
	// @ts-ignore
	import * as ReactDOM from "#react-dom-server-implementation";
	// @ts-ignore
	import * as ReactDOMClient from "#react-server-dom-client-implementation";

	export async function fetch(
	request: Request,
	{
	browserEntry,
	// helps us in parsing the frontmatter from text content
	const matter = require('gray-matter')
	// helps us safely stringigy the frontmatter as a json object
	const stringifyObject = require('stringify-object')
	// helps us in getting the reading time for a given text
	const readingTime = require('reading-time')

	// please make sure you have installed these dependencies
	// before proceeding further, or remove the require statements
	// that you don't use