[drinchev]

Well my litmus test regarding outdated way of doing stuff is the answer of the question "If I start a new project today, would I use 'x'?". Answer "no" means the technology is fading even for simple use cases.

Example, 'x' and 'No'-answer :

- jQuery / prototypejs / etc...

- Backbone

- CoffeeScript

- Perl, SVN, Java Applets :D

On the other hand you still have 'Yes'-es for some old tech-stack, since it is still acceptable to do a task with old technology. Example, 'x' and 'Yes'-answer :

- Form + POST requests / No javascript

- Pure CSS ( no SCSS, etc... )

- Handlebars, instead of React / Vue / you name it