The idea of sharing code this way dates back to 1967, specifically to the SIMULA language which is credited to have been responsible for the birth of object oriented programming.

Small programs usually can be stored in one file so it won’t be a problem to read (and understand) them. Things start to complicate as your code grows: one day you may lose yourself in your own chaos and find it hard to organize your application.

At Instagram, we deploy our backend code 30-50 times a day... whenever engineers commit changes to master... with no human involvement in most cases. This may sound crazy, especially at our scale, but it works really well.

If you’re not currently using a font loading strategy, using preload with web fonts will reduce the amount of FOIT visitors will see when they visit your site—paid for by sacrificing initial render time.

Web font load­ing may seem com­pli­cated, but it is ac­tu­ally quite sim­ple if you use these font load­ing pat­terns. Com­bine the pat­terns to cre­ate cus­tom font load­ing be­hav­iour that works in all browsers.

Sometimes one single hidden glyph in a HTML markup makes the difference between a good and an outstanding front-end.

Make your icons awesome for all of your users.

If you can name a function really well, it probably does one thing and one thing only. This means you’ve figured out a decent way to separate your concerns, which means that often, the name is really all you need to know.