Format a CSV string in Twig

If you’ve ever had to format a string of values in most languages then you’re certainly familiar with the ugly logical hoops you have to jump through just to get the formatting to look good.

Here’s a nice way to do it in Twig:

So given a dirty array of phone numbers:

['123-4567', '', '321-7654']

the above snippet will strip empty values, chomp extraneous whitespace, and output:

Phones: 123-4567, 321-7654