filter(Boolean), wow. Thank you.

learned how to remove empty strings from array using filter(). thanks!

Learned a new shorthand for .filter(val => Boolean(val)). Thanks!

.filter(Boolean) === .filter((val, index, arr) => Boolean(val, index, arr)) 
// Boolean ignores the other 2 params, so it's basically just Boolean(val)

For more info you can read the documentation for the filter function:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter

this might help: arr.filter(Boolean) is the same as: arr.filter( x => Boolean(x) )

This is an awesome use case for Boolean! Awesome work!

How does the use of Boolean only filter empty strings that evaluate as false and not strings that evaluate as true?

Use spoiler flag, please.

I have seen such usage of Boolean for the first tme

I learned a ton from looking at this one. Thanks! Filtering out empty strings, because they evaluate as false, was very clever.

Very clever, I've never seen Boolean used this way but it makes sense to me!

The use of the filter is very clever. Nice solution!

this is clever but I think the filter(Boolean) is a bit hard to understand, or maybe it's because it's the first time I've seen it used like this... Cool nonetheless