DEV Community

What Did you Learn this week --March 20?

Waylon Walker on March 20, 2020

I re-learned my love for TypeScript, learned some more Fortran (still at the basics as I am working on prototyping ideas in Python). I learned a lot on how to translate custom code into a different language,

Waylon Walker • Mar 23 '20

That is super cool. I have dabbled a time or two in integrating a lower level language into a python package. I just have never had a use case to go much further. I think that would be an amazing skill to have!

have you tried cython, or any of the other python "compilers"?

Loralighte • Mar 23 '20

Yeah, I have. They work fine however in my opinion they feel slow.

Lars Quentin • Mar 23 '20

Just out of curiosity, 2 Questions:

Why do you learn Fortran? I'd guess that there are no significant performance advantages to modern C++ oder even just C
Are you a physicist?

Loralighte • Mar 23 '20

I really like the syntax, especially compared to C and C++
Nope

Jasmin Virdi • Mar 20 '20

I have started learning react hooks by doing a mini-project. Apart from this, I have learned about the parcel and font ligatures. I have set up Fira Code in my Visual Studio Code. It is amazing 😄

Waylon Walker • Mar 20 '20

I still need to really learn hooks! I have done some silly buttons, but any time I need to do something real and just need to get it done I have to do it with classes.

Waylon Walker • Mar 20 '20

Kicking it off myself. I learned how to gzip a full JAMStack (gatsby) website into a python cli and load user data through fetch requests. The full package on pypi is uner 500kb compared to many python libraries that creep in over 10mb It seems to work really well.

Waylon Walker • Mar 20 '20

I also dug super deep into learning bash functions and control flow in bash.

krishna kakade • Mar 20 '20

I learn react basics and completed only reactjs section in freecodecamp what about you?

Waylon Walker • Mar 20 '20

React is so powerful. It has reached a point where there are so many things that you can npm install a widget and have a really amazing that that wouldnt have been half as good had you done it yourself.
It's likely a community of folks have invested weeks/months into that component and made it something really great.

Are you learning all hooks, or class based components?

Andrzej Chmura • Mar 21 '20

Finally had an opportunity to grasp Next.js. Great piece of technology, especially now with improved static export APIs.

Waylon Walker • Mar 21 '20

I should check Next out as well! I end up using gatsby for everything. Even very dynamic sites, I just pull data with axios rather than through gatsby. Just sticking to what I know for now.

Mike • Mar 20 '20

I'm learning how to integrate Pusher into my web apps. I'll be writing a post about how I did it and my findings!

Waylon Walker • Mar 20 '20

Pusher looks quite interesting. Looks like it makes socket connections really easy.

Lemuel Okoli • Mar 21 '20

I have been learning Kotlin for a while now.

sravanthivelidandla • Mar 27 '20

I started learning react.js. Understood React hooks at a basic level.Working on some samples. Let me know if anyone has further guidance on what can be picked up next

Waylon Walker • Mar 27 '20

Big step forward!!! Just build stuff you will figure out what you need to learn next! Maybe you already know enough react to get started and what you really need to learn is an API/database component to the things that you want to build.

Make sure you can make components reusable. Play around with different patterns so that you are familiar with them as you are building things.

Kalaiarasan Pushpanathan • Mar 20 '20

That local variable takes precedence over global.

var variable = 'global';
function testFunction() {
var variable = 'local';
console.log(variable);
}
testFunction();
console.log(variable);

Waylon Walker • Mar 20 '20

The power of scoping. I saw this and had to try it out with const. You can redefine const inside of a function as well.

Mohamed Hassan • Mar 20 '20

learned some advanced sql stuff :)

Waylon Walker • Mar 20 '20

That is awesome. Every time I learn some new SQL that I can implement there is a query that used to take minutes, now is seconds. Most of the time it just means moving some work from python to SQL to be done in the database.