Twig comes with quite some handy functionalities. Date formatting is an example. In this snippet an example of how to show the created date in a drupal 8 time format. 

{% set date = node.created.value|date('U')|format_date('short') %}
{{ date }}

You could also do just the following:

{% set date = node.created.value %}
{{ date|date('M d') }}

 

Sometimes you need a body text that is trimmed. No need to install contrib modules.

Use global theme javascript only in a few occasions. You should make sure javascript is only used on the right places. This snippet shows you how to load javascript when a specific view is loaded only.

Batch processes give you a hard time when using them for the first time. This module example will handle every aspect of it!

A much needed functionality is how you get the url of an image style form the uri (f.e. in a node object). This snippets helps you accomplish this.