What is your favorite library as a dev?
Whatever it may be related to.
Mine is moment.js

I second momentjs - I discovered it kinda late in life.

Right now? ActiveJDBC by JavaLite. Databases in Java have never been easier.

I really like moment. I also try to use as little libraries as possible in my code, so tough to say 🤔

I currently get started to like Qt, but gtkmm was loads of fun as well. Unfortunately, I can't get it to work on Windows :/

Sails js

Butterknife for Android
Collections for Python
Moment.js for Javascript

@trubesv there are really people who like it? 🙊 Some of its documentation is a catastrophe.

For JS I really start to like VueJS. But for Java it's JavaEE. I find it really amazing and sophisticating. 😮

@trubesv maybe I will. My biggest concern is to learn something I can't use in the future, e. g. because my company uses something different.

Most used:

(Illuminate) Collection and Carbon for PHP. They fix things which are seriously broken, namely: functional array methods such as map/filter; And date time operations.

Most powerful:

Lens in Haskell. It allows for very terse and arguably readable traversal, folding and modification of complex data structures. Its operations can literally be visualized as optics: sets of composable lenses, filters and prisms which split and mix through json, html, lists, trees, game state, basically any type of data — and projecting it into a new desired format.