Feb. 14, 2020: What did you learn this week?

Nice I learned about CSS :focus-within pseudo-class even wrote a post on it.

Applying CSS :focus-within

Gift Egwuenu ・ Feb 13 ・ 2 min read

#css #beginners #tutorial

I've been having some issues with my GIT repo and this is my lesson of the week: When in troubles, use --force.

I learned different ways of adding CSS to React components (inline, in global css file and using Radium). :)

I learned that in 2020, in NodeJS, the thing to use now for streams is the built-in pipeline. Previously we dealt with streams like this:

res.pipe(outStream) // Pipe an http response to a destination

A few years ago, we were told to use pump, a separate module in npm. But now, pipeline is built into NodeJS and you can just use that!

So, pipelining can now look like this:

pipeline(res, outStream)
.then(handleDone) // .then if you promisified "pipeline"
.catch(handleError)

This way, you can have an array of streams that might be conditionally set:

const streams = [res]
if (res.headers['content-encoding'] === 'gzip') {
  streams.push(createGunzip())
}
streams.push(outStream)

pipeline(...streams) // We can now use the spread syntax with pipeline. 
...

(FYI: it's also a good idea to read about Backpressuring in Node)

I learned how (and why) to combine .editorconfig and Prettier.

Prettier uses some of editorconfigs config.

I got to know about creating a server with Express thanks to Brian Holt's Intro to Web Development .v2 course on Frontend Masters.

I dove deep into the data structure hash tables. I learned about which instances they should and shouldn't be used for in regards to code efficiency.

I learned the shortcut to find and replace in VS Code shift + H

I learned jwt authentication using vue.js and django rest framework this week

I learned React & Rails this week!