tito

# Solution 1
# original solution proposed in the PR
# pro: easy declaration
# cons: instanciation is a little bit hard to write
#       possible method conflict with multiple protocols 

class MyObjcDelegate:
    def connection_didFailWithError_(self, connection, error):
      print("Protocol method got called!!", connection, error)
      

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

sylr

echo master shard_{0,1,2,3} | xargs -n1 /usr/local/bin/dropdb -p 6432 -h /tmp -U postgres
echo master shard_{0,1,2,3} | xargs -n1 /usr/local/bin/createdb -p 6432 -h /tmp -U postgres

for a in {0..3}; do
    echo "
        CREATE TABLE users (id serial PRIMARY KEY, username TEXT NOT NULL);
        ALTER SEQUENCE users_id_seq INCREMENT BY 4 RESTART WITH $a;
    " | /usr/local/bin/psql -p 6432 -h /tmp -U postgres -d shard_$a;
done