Small coding challenges (JavaScript

[BigGummedRetard]

Im looking for some new coding challenges to help expand my knowledge of JavaScript

[Nettly_]

Host your website using Node.js 
Make a clock app using only Electron.js and plain JavaScript (Extra points if you get it to a 12 hour clock)
Make an app using Electron.js and any other JavaScript module with NO HTML and CSS (small but hard)

[vorticalbox]

chunk an array

chunk([1,2,3,4,5,6,7,8,9.10], 2)

output [[1,2], [3,4], [5,6], [7,8], [9,10]]

 

impliment a quick sort

 

https://en.wikipedia.org/wiki/Quicksort

 

 

[ArjhanToteck]

Here's a good challenge; help me with this.