This week in our Slack channels
We usually avoid private messages. Among other benefits, it helps us to share
knowledge across the company. Many interesting conversations and discoveries
happen on public channels like #dev or #design. These are some of the most
valuable resources we have, and now we decided to share some highlights with
you, dear reader!
Here’s a selection of the most interesting conversations that happened in our
#dev channel this week:
Highlights
Ruby’s Kernel.abort
Matheus shares that he has often created a method like this for scripts:
def exit_with_error(msg)
$stdout.write(msg)
exit(-1)
end
Recently, he discovered Ruby’s Kernel.abort which essentially does this out
of the box.
Rolling back Rails migrations
Elisa Verna shares how using rails db:rollback STEP=number is much more
convenient than running migrations down individually by version number. Steve
Polito also mentions rails db:migrate:redo, which is a shortcut for doing a rollback
and then migrating back up again (and also accepts the STEP parameter).
# Rollsback and up again 3 migrations
bin/rails rails db:migrate:redo STEP=3
Formatting lists in JavaScript
Did you know that JS has its own version of the famous Rails convenience to_sentence?
const vehicles = ['Motorcycle', 'Bus', 'Car'];
const formatter = new Intl.ListFormat('en', {style: 'long', type: 'conjunction'});
console.log(formatter.format(vehicles));
// expected output: "Motorcycle, Bus, and Car"
It’s worth checking the other constructors available, like Intl.NumberFormat.
Formatting Java code
In case you’re working with Java, Mike Burns shares a quick guide on how to format a selection of code (or the whole file) using IntelliJ.
Thanks
This edition was brought to you by Elisa Verna, Matheus Richard, Mike Burns, Neil Vilela and Steve Polito. Thanks to all contributors!