Cover image for September 24th, 2020: What did you learn this week?

September 24th, 2020: What did you learn this week?

nickytonline profile image Nick Taylor (he/him) ・1 min read

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.

Claymation owl teacher helping a student owl

Feel free to comment with what you learnt and/or reference your TIL post to give it some more exposure.


Summarize a concept that is new to you.

And remember, if something you learnt was a big win for you, then you know where to drop it as well.👇👇🏻👇🏼👇🏽👇🏾👇🏿



Editor guide

I learnt that multiple exclamation marks are allowed for visual representations of alarms on medical devices (IEC 60601-1-8, section, so I've added this to the css:

  content: "!!!";

My first use of ::after.


Finally cracked open Svelte. Very impressed.


Same... incredible tool.


Here are my learning stuffs:

  • Using some hacking tools to practice some CTF challenges on hackable.ca and hackme.inndy.tw. It's hard work because there are many CTF challenges are waiting for me to resolve :).
  • I plan to build my hacking tool environment based on Ubuntu 18.04 to resolve above CTF website :).
  • Developing a web-based YouYube downloading site to let my family members download video on YouTube conveniently/easily.

I've been playing with Nuxt and some of its modules including the module one I like being to write everything in markdown and I have decided to move my blog from gridsome to nuxt just need to figure out pagination and how I can set up a feed to cross-post on here. I've learnt how to use async data with nuxt and how the config works.


That's awesome! 🔥

Yes, that's awesome!


I learn that angular has a validator to input checkbox to valid if it's true.

Eg: "aceptTerms":[false,Validators.requiredTrue]


Learnt that no matter how hard I pretend to have infinite capacity, I don't. Investing in getting everything to stop being overwhelming :)


I learned about JavaScript’s event bubbling and capturing which was so illuminating!


Not programming related, I've been studying for my finals exams next week. Lots about DB management and OS design!


You can chain assignment operators in JS.

w = z = x = y 

This means you can also do horrible things like:

w +=y *= x -= z


because I'm too lazy


I learned about the interval operator in rxjs. I started working on a personal project that shows current crypto currency prices. Fun stuff!


The dangers of stateful Spring beans. Never again.


Not related to tech. Simple "thank you" can really make a big difference than you think.