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February 19th, 2021: What did you learn this week?

Nick Taylor on February 19, 2021

It's that time of the week again. So wonderful devs, what did you learn this week? It could be programming tips, career advice etc. ![Yoda woopi...

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Dan Silcox • Feb 19 '21

I used GitHub Actions for the first time - sooo easy and good! Why have I not used this before?!

Nick Taylor • Feb 19 '21

ayoubelmhamdi • Feb 19 '21

not easy , it's powerfull but not easy

Dan Silcox • Feb 19 '21

I guess what I meant is I was able to get 2 GH actions up and running successfully in far less time than if I were to have set up Jenkins from scratch with auto scaling nodes etc etc - certainly I’m sure it gets complicated the deeper you go!

In any case you are right as it’s a poor choice of words - what I found easy, others might not (and vice versa). We are all at different stages in this life long journey called software development :)

Igor Lukanin • Feb 19 '21 • Edited

I’ve played with ClickHouse — it’s a fast open-source analytical column-based database, and by fast I mean BLAZINGLY FAST. It’s also very developer-friendly: for example, It has something like REPL on its website that you can instantly try and use. And I actually wrote a guide about building an analytical dashboard with ClickHouse! Here it is:

Building ClickHouse Dashboard and crunching WallStreetBets data 💸🤑

Igor Lukanin ・ Feb 19 ・ 13 min read

#webdev #database #javascript #tutorial

Nick Taylor • Feb 19 '21

Igor Lukanin • Feb 19 '21

My Twitter thread about ClickHouse quirks and features: twitter.com/igorlukanin/status/136...

Heiker • Feb 20 '21

I've been playing around with repl.it since I found out you can use it to deploy web servers. This means that is basically like a "full stack codepen".

I learned how to setup a tiny web server with 6 lines of code*.

(*) not counting the dependencies.

// index.js

const router = require('find-my-way')();
const static = require('serve-handler');

const assets = (req, res) => static(req, res, {'public': './public'});

router.on('GET', '/hello', () => 'Hello!');
router.on('GET', '/*', assets);

module.exports = (req, res) => router.lookup(req, res);

And 1 command.

node_modules/.bin/micro -l tcp://0.0.0.0:3000 index.js

Ok, technically you need to install things first. That'll be 2 commands.

npm install micro@9.3.4 serve-handler@6.1.3 find-my-way@4.0.0

There you have it a (useless) web server with a fully functional router and capable of handling static assets. Here's a more exciting example in repl.it: micro-quote-machine.

Nick Taylor • Feb 20 '21

Andrew Bone • Feb 19 '21

I'm slowly but surely getting my head around WebGL. I've been using 2d context for a while but needed to do some equirectangular projection maths, which was painful on the cpu, and foolishly thought, 'how hard can it be?'.

ayoubelmhamdi • Feb 19 '21

use cloud for simulation as virtuzl mation or whatever
something cloud subscription is free

Nick Taylor • Feb 19 '21

Nice!

Amr Elmoogy • Feb 19 '21

I had used location service in my own Android app using Java.
And I had completed 100 Problem solved in LeetCode and I'm really happy for that :)

Nick Taylor • Feb 19 '21

Ludovic Taffin • Feb 19 '21

I did my first Dockerfile 👌💪

Nick Taylor • Feb 19 '21

Ficky Irwanto • Feb 20 '21

I've converted existing VueJS SPA into Android apps with CapacitorJS. The guides was easy to follow and the application is working good. Just need to change the icons and enable camera for file upload.