Optimising images for your website can be a bit of a black art, but it’s well worth doing as the bandwidth savings can be large. It will also make a big difference to the speed at which your site loads.
Learn how to use GNU Readline’s powerful tab completion features in your own applications.
Learn to make domains and TLS certificates predictable and debuggable, while grasping their core concepts with plenty of examples.
Learn how to build a blazing fast Phoenix API. Updated for Phoenix 1.2.
Learn what a HyperLogLog is and how you can use it to count billions of unique things.
What do you do when indexes aren’t enough?
Vim commands are terse and arcane, but very expressive. See a complex command broken down by clause.
Take a guided tour through a query plan for a “simple” SQL query.
Learn how to use Test-Driven Development to write better software in our newest Upcase trail.
Skip adding another dependency and leverage GenServer and Erlang Term Storage to build an in-memory key-value store for even faster Phoenix applications.