Today I Learned: currying is possible in Javascript ES6 (ES2015).
 
Javascript has always considered functions to be first-class citizens of the language, meaning we can pass them around as input for other functions. Currying allows us to create temporary stateful copies of other (stateless template) functions, which we then can apply to local variables.
 
As far as I can tell, currying was created both to accommodate languages that limit the amount of arguments (input passed into a function) to 1, and to allow functions to remember variable contents without having to write out a variable that remembers it, giving it the pretense of being stateless. (In functional programming, people harp on writing stateless code, but also love currying.)
 
So here's some code:
 

const letters = ["a", "b", "c"];
const numbers = [0, 1, 2];
const concat = (y) => (x) => x+y;
numbers.forEach(i => {
  let c2 = concat(i);
  console.log(c2(letters[ i ]));
});  

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The output:

0a  
1b  
2c  

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You can try this out yourself over on SoloLearn, for instance, where I've saved a runnable version of above code sample.
https://code.sololearn.com/WrcW2Gmsfn2q/
 
Happy currying!

Why Is Node.js the Best Framework for App Development?

Node.js makes use of JavaScript; which the most popular programming languages of today. For a very long time now, companies have embraced Node.js app development as it helps companies promote their apps in a short span of time. Node.Js framework is a brilliant tool whenever you want to design server-side web applications in JavaScript. There are several advantages when it comes to using Node.js for App development. It is one of the most popular and modernized frameworks preferred by developers for building easy to market web apps.

Here is interesting idea. Why not replace jQuery with a modern framework like Vue.js? This article goes over some potential benefits  https://www.smashingmagazine.com/2018/02/jquery-vue-javascript/

https://www.smashingmagazine.com/2018/01/front-end-performance-checklist-2018-pdf-pages/

Frontend in 2017  https://blog.logrocket.com/frontend-in-2017-the-important-parts-4548d085977f

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This is the best selling point I've seen for updating to ES2017. Callbacks and promises were annoying as can be. https://css-tricks.com/using-es2017-async-functions/

Nuxt is a great Vue.js starter kit. Vue.js is another javascript framework like React or Angular. I wasn't a fan of Vue until I saw this kit. https://www.sitepoint.com/nuxt-js-universal-vue-js/ 

The other day Rourke told me about a game called Screeps where you code your AI units in Javascript. I'm surprised I haven't heard about these types of games before! The reviews say there's a barrier to entry for novice programmers but hopefully that won't scare too many off.

This looks like an interesting way to build a javascript application without introducing framework library dependency hell. I definitely plan to give it a try.

This is an amazingly simply way to make an Electron desktop application from a webpage. I love it :D

This guy has a great series of videos on youtube. His code lessons are amusing.