qubbit

Gopal's packing list*

🚨

• 🆔Wallet & Passport
• 💧Travel water bottle
• 💳Travel credit cards (don't pay foreign currency fees!)
• 💳Insurance cards
• 💵Local currency if traveling to foreign country
• 🚎Local public transport cards
• 📖A book/kindle

notwaldorf

Meownica's packing list

I travel a lot so I'm down to like 30 minutes of packing per any kind of trip. I always bring one carry-on suitcase for any trips up to 2 weeks (that I never check in unless forced) -- I have an Away suitcase because it's got a built-in (removable) battery, and amazing wheels.

🚨

• 🆔Wallet & Passport
• 💧Travel water bottle
• 💳Travel credit cards (don't pay foreign currency fees!)
• 💳Insurance cards
• 💵Local currency you have
• 🚎Local public transport cards

LucaCappelletti94

Firing up LaTex on macOS 🔥

As I'm writing this small tutorial, I assume you've read my previous one about setting up macOS, so if for any tool I'll use without explanation, look to that other article.

MacTex

The full version IS NOT MANDATORY, as in the tutorial that follows I installed the smaller version of MacTeX and proceded installing every needed dependency. Installing the complete package is about ~3.5GB of download and ~5GB on disk, the smaller one is just about 80MBs.

Click here to download the complete version or here to download the smaller version.

Gnuplot

giannisp

After automatically updating Postgres to 10.0 via Homebrew, the pg_ctl start command didn't work.
The error was "The data directory was initialized by PostgreSQL version 9.6, which is not compatible with this version 10.0."

Database files have to be updated before starting the server, here are the steps that had to be followed:

# need to have both 9.6.x and latest 10.0 installed, and keep 10.0 as default
brew unlink postgresql
brew install postgresql@9.6
brew unlink postgresql@9.6
brew link postgresql

ethicka

🚨 2020 Update: I recommend using mkcert to generate local certificates. You can do everything below by just running the commands brew install mkcert and mkcert -install. Keep it simple!

---

This gives you that beautiful green lock in Chrome. I'm assuming you're putting your SSL documents in /etc/ssl, but you can put them anywhere and replace the references in the following commands. Tested successfully on Mac OS Sierra and High Sierra.

Set up localhost.conf

sudo nano /etc/ssl/localhost/localhost.conf

VictorTaelin

async/await is just the do-notation of the Promise monad

CertSimple just wrote a blog post arguing ES2017's async/await was the best thing to happen with JavaScript. I wholeheartedly agree.

In short, one of the (few?) good things about JavaScript used to be how well it handled asynchronous requests. This was mostly thanks to its Scheme-inherited implementation of functions and closures. That, though, was also one of its worst faults, because it led to the "callback hell", an seemingly unavoidable pattern that made highly asynchronous JS code almost unreadable. Many solutions attempted to solve that, but most failed. Promises almost did it, but failed too. Finally, async/await is here and, combined with Promises, it solves the problem for good. On this post, I'll explain why that is the case and trace a link between promises, async/await, the do-notation and monads.

First, let's illustrate the 3 styles by implementing

nikneroz

Elixir + Phoenix Framework + Guardian + JWT + Comeonin

Preparing environment

We need to generate secret key for development environment.

mix phoenix.gen.secret
# ednkXywWll1d2svDEpbA39R5kfkc9l96j0+u7A8MgKM+pbwbeDsuYB8MP2WUW1hf

Let's generate User model and controller.

simonw

How to recover lost Python source code if it's still resident in-memory

I screwed up using git ("git checkout --" on the wrong file) and managed to delete the code I had just written... but it was still running in a process in a docker container. Here's how I got it back, using https://pypi.python.org/pypi/pyrasite/ and https://pypi.python.org/pypi/uncompyle6

Attach a shell to the docker container

Install GDB (needed by pyrasite)

apt-get update && apt-get install gdb

chrismccord

If you want a run-down of the 1.3 changes and the design decisions behidn those changes, check out the LonestarElixir Phoenix 1.3 keynote: https://www.youtube.com/watch?v=tMO28ar0lW8

To use the new phx.new project generator, you can install the archive with the following command:

$ mix archive.install https://github.com/phoenixframework/archives/raw/master/phx_new.ez

Bump your phoenix dep

Phoenix v1.3.0 is a backwards compatible release with v1.2.x. To upgrade your existing 1.2.x project, simply bump your phoenix dependency in mix.exs:

KCreate

class Lexer {
  property tokens
  property source
  property pos
  property buffer

  func constructor() {
    @tokens = []
    @token = null
    @source = ""