Ahmed Mejbri lastmaj

Primitive Types & Reference Types in JavaScript

An explanation of JavaScript's pass-by-value, which is unlike pass-by-reference from other languages.

Facts

JavaScript has 2 kinds of variable types: primitive and reference.
A fixed amount of memory is reserved after creation of every variable.
When a variable is copied, it's in-memory value is copied.
Passing a variable to a function via a call also creates a copy of that variable.

Primitive Types

If you haven’t worked with JavaScript in the last few years, these three points should give you enough knowledge to feel comfortable reading the React documentation:

We define variables with let and const statements. For the purposes of the React documentation, you can consider them equivalent to var.
We use the class keyword to define JavaScript classes. There are two things worth remembering about them. Firstly, unlike with objects, you don't need to put commas between class method definitions. Secondly, unlike many other languages with classes, in JavaScript the value of this in a method [depends on how it is called](https://developer.mozilla.org/en-US/docs/Web/Jav

Today (April 16th 2019 at noon) the first major clues to discover key #1 was set to be released in a few cities. A QR code with the words 'orbital' were found at these locations and looked like this: (https://imgur.com/a/6rNmz7T). If you read the QR code with your phone you will be directed to this url: https://satoshistreasure.xyz/k1

At this URL you are prompted to input a passphrase to decrypt the first shard. An obvious first guess was to try the word 'orbital' from the QR code. Not suprisingly this worked! This reveals a congratulations page and presents the first key shard:

ST-0001-a36e904f9431ff6b18079881a20af2b3403b86b4a6bace5f3a6a47e945b95cce937c415bedaad6c86bb86b59f0b1d137442537a8.

Now, we were supposed to wait until April 17th to get clues from the other cities for keys #2 and #3 but that wouldn't stop me from digging around with all the new information we had. All that time "playing" notpron (http://notpron.org/notpron/) years ago was going to help me here.

The first thing I noticed was

Django Deployment to Ubuntu 18.04

In this guide I will go through all the steps to create a VPS, secure it and deploy a Django application. This is a summarized document from this digital ocean doc

Any commands with "$" at the beginning run on your local machine and any "#" run when logged into the server

Create A Digital Ocean Droplet

Use this link and get $10 free. Just select the $5 plan unless this a production app.

	/var/log/celery/*.log {
	weekly
	missingok
	rotate 52
	compress
	delaycompress
	notifempty
	copytruncate
	}

	// early experiments with node had mysterious double requests
	// turned out these were for the stoopid favicon
	// here's how to short-circuit those requests
	// and stop seeing 404 errors in your client console

	var http = require('http');

	http.createServer(function (q, r) {

	// control for favicon

	"""
	this code is not mine! i shamelessly copied it from http://stackoverflow.com/questions/19790188/expanding-english-language-contractions-in-python
	all credits go to alko and arturomp @ stack overflow.

	basically, it's a big find/replace.
	"""

	import re
	cList = {
	"ain't": "am not",

	/**
	* This code is licensed under the terms of the MIT license
	*
	* Deep diff between two object, using lodash
	* @param {Object} object Object compared
	* @param {Object} base Object to compare with
	* @return {Object} Return a new object who represent the diff
	*/
	function difference(object, base) {
	function changes(object, base) {

	#include<linux/module.h>
	#include<linux/init.h>
	#include<linux/proc_fs.h>
	#include<linux/sched.h>
	#include<linux/uaccess.h>
	#include<linux/fs.h>
	#include<linux/seq_file.h>
	#include<linux/slab.h>

	static char *str = NULL;