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hdhzy
This seems like a really interesting page, unfortunately it's currently hard to consume on a smartphone: no mobile view and not possible to enable Reader Mode even on Firefox for Android :(
Arcsech
To be fair, a big part of this page is the interactive exercises, which would be a nightmare to try to do on mobile anyway. So I can see why being compatible with mobile wasn't a big concern.
hdhzy
Well reading about this non interactively is still better than, well, not reading at all. I have vivid imagination!
zmonx
Datalog is a declarative database query language with roots in logic programming.

That's right, and even more holds: Syntactically, Datalog is a proper subset of Prolog!

iso-8859-1
In this tutorial, they use EDN, which is a subset of Clojure data instead.
zmonx
Yes, I noticed. That's a very significant departure from Datalog syntax.

"Learn Datalog Today", and learn something else from this tutorial!

jwr
If you are wondering why you would want to dive in, let me offer another good reason: there is Datascript (https://github.com/tonsky/datascript), which puts a good subset of Datalog inside your client-side browser app.

I found it very useful for dealing with relational data in browser apps.

[dead] ptsankov1
Nice project! The syntax does not appear very intuitive... I have hard time parsing it though I've used Datalog in many projects. Logicblox seems more intuitive -- www.logicblox.com -- but it is not free.