eamartin

zaxtax

#!/usr/bin/env python3

import click
import numpy as np
import sys


class IntOrStr(click.ParamType):
    name = 'int/str'

pathikrit

Libraries

• Web Server: Play (framework) or http4s (library)
• Actors: akka
• Asynchronous Programming: monix (for tasks, reactors, observables, scheduler etc)
• Authentication: Silhouette
• Authorization: Deadbolt
• Command-line option parsing: case-app
• CSV Parsing: kantan.csv
• DB: doobie (for PostgreSQL)

johnynek

/**
 * In a static language like scala, how could we repeatedly flatten a datastructure without reflection?
 * This is an interesting example of using implicit parameters to do the work for you.
 */
object DeepFlatten {

  // what should this really be called? ;)
  trait Flattenable[F[_]] {
    def flatten[A](f: F[F[A]]): F[A]
  }

johnnyjung

# Setting up and using PostgreSQL with Rails on OS X
# Allows you to use PostgreSQL instead of sqlite3, and have the same database type as Heroku

# Install postgres using homebrew
brew install postgres

# Follow directions provided by postgres installation
# Instructions for this part can be retrieved again using "brew info postgres"
# This creates a default user according to your system name 
# If you encounter an error similar to this, then check out these helpful links