Tanvir Islam Streame tanvirstreame

## gist:1b0cc9968d3de40abff2c27d699b0d10
// Help in developing package locally
// https://medium.com/@sam-king/an-alternative-to-npm-link-cf9ab9408f56
// https://betterprogramming.pub/how-to-create-and-publish-react-typescript-npm-package-with-demo-and-automated-build-80c40ec28aca

npm i yalc -g
yalc publish


yalc add example-package@0.0.1
yalc remove example-package@0.0.1

## gist:8b3f38bb08b6f02192a56f382820b96b
<html>

<head>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"
        integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
    <style>
        thead {
            position: sticky;
            position: -webkit-sticky;
            top: 0;

## gist:eecfdf67760d6681e913a93fa43c6ada
screen.debug(undefined, Number.POSITIVE_INFINITY);

## rsa.js
const crypto = require("crypto")

// The `generateKeyPairSync` method accepts two arguments:
// 1. The type ok keys we want, which in this case is "rsa"
// 2. An object with the properties of the key
const { publicKey, privateKey } = crypto.generateKeyPairSync("rsa", {
	// The standard secure default length for RSA keys is 2048 bits
	modulusLength: 2048,
})

## public_enc_example.sh
#!/bin/bash
#
# Public-Key Encryption and Decryption
# * http://www.openssl.org/
# * http://barelyenough.org/blog/2008/04/fun-with-public-keys/
#
# Mac OS X 10.6.4
# OpenSSL 0.9.8l 5 Nov 2009

# Generate keys

## rsa.txt
// Generate private.pem
openssl genrsa -out private.pem 512

// Generate public.pem
openssl rsa -in private.pem  -pubout > public.pem

// Encrypt
openssl rsautl -in text.txt -out secret.enc -pubin -inkey public.pem -encrypt

// Decrypt

## two_pointers.js
// This gist is for my YouTube video which I tried to explain Window Sliding Technique.
// You can watch it from here: https://youtu.be/guDU5HnLqAs

// Given a sorted array A (sorted in ascending order), having N integers,
// find if there exists any pair of elements (A[i], A[j]) such that
// their sum is equal to X.
//
// Input: A = [2,3,4,5,6,7,8,9], k= 10
// Output: true
// NOTE: We slightly changed the question and the output in the video. We're returning pair indexes as an array.

## gist:95bcf2494005545a2a9118370f6c0a19
mongorestore --uri <link>  -d <new-db-name> dump/

## PurgeCss in Create React App without ejecting
//package.json
{
  ...
  "devDependencies": {
     ...
    "purgecss": "^3.0.0"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build && npm run purge-css",

## gist:56142d5c12ad5c98894c9d4461d829fd
cp /etc/mongod.conf /etc/mongod2.conf
cd /lib/systemd/system

cp mongod.service mongod2.service

edit ta service config and add /etc/mongod2.conf
sudo chown -R mongodb:mongodb /root/database/replica_database*
sudo systemctl start mongod2.service
sudo systemctl status mongod2.service
	// Help in developing package locally
	// https://medium.com/@sam-king/an-alternative-to-npm-link-cf9ab9408f56
	// https://betterprogramming.pub/how-to-create-and-publish-react-typescript-npm-package-with-demo-and-automated-build-80c40ec28aca

	npm i yalc -g
	yalc publish


	yalc add example-package@0.0.1
	yalc remove example-package@0.0.1
	<html>

	<head>
	<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"
	integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
	<style>
	thead {
	position: sticky;
	position: -webkit-sticky;
	top: 0;
	const crypto = require("crypto")

	// The `generateKeyPairSync` method accepts two arguments:
	// 1. The type ok keys we want, which in this case is "rsa"
	// 2. An object with the properties of the key
	const { publicKey, privateKey } = crypto.generateKeyPairSync("rsa", {
	// The standard secure default length for RSA keys is 2048 bits
	modulusLength: 2048,
	})
	#!/bin/bash
	#
	# Public-Key Encryption and Decryption
	# * http://www.openssl.org/
	# * http://barelyenough.org/blog/2008/04/fun-with-public-keys/
	#
	# Mac OS X 10.6.4
	# OpenSSL 0.9.8l 5 Nov 2009

	# Generate keys
	// Generate private.pem
	openssl genrsa -out private.pem 512

	// Generate public.pem
	openssl rsa -in private.pem -pubout > public.pem

	// Encrypt
	openssl rsautl -in text.txt -out secret.enc -pubin -inkey public.pem -encrypt

	// Decrypt
	// This gist is for my YouTube video which I tried to explain Window Sliding Technique.
	// You can watch it from here: https://youtu.be/guDU5HnLqAs

	// Given a sorted array A (sorted in ascending order), having N integers,
	// find if there exists any pair of elements (A[i], A[j]) such that
	// their sum is equal to X.
	//
	// Input: A = [2,3,4,5,6,7,8,9], k= 10
	// Output: true
	// NOTE: We slightly changed the question and the output in the video. We're returning pair indexes as an array.
	//package.json
	{
	...
	"devDependencies": {
	...
	"purgecss": "^3.0.0"
	},
	"scripts": {
	"start": "react-scripts start",
	"build": "react-scripts build && npm run purge-css",
	cp /etc/mongod.conf /etc/mongod2.conf
	cd /lib/systemd/system

	cp mongod.service mongod2.service

	edit ta service config and add /etc/mongod2.conf
	sudo chown -R mongodb:mongodb /root/database/replica_database*
	sudo systemctl start mongod2.service
	sudo systemctl status mongod2.service