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# Basic key operators to query the JSON objects :

# #> : Get the JSON object at that path (if you need to do something fancy)
# -> : Get the JSON object at that path (if you don't)
# ->> : Get the JSON object at that path as text
# {obj, n} : Get the nth item in that object

# https://www.postgresql.org/docs/9.4/functions-json.html#FUNCTIONS-JSONB-OP-TABLE
# Date 
# date before today

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Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.

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target hw1
    sources
        hw1.mlb
        hw1.main.sml
    end

    option compiler = mlton
    option output = hw1
end

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class A
class A2 extends A
class B

trait M[X]

//
// Upper Type Bound
//
def upperTypeBound[AA <: A](x: AA): A = x

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import java.lang.Character.{ LETTER_NUMBER => CR,LINE_SEPARATOR => LF }
import java.net.InetSocketAddress
import java.nio.channels.AsynchronousChannelGroup._
import java.nio.channels.AsynchronousServerSocketChannel._
import java.nio.channels.{ AsynchronousSocketChannel => ASC }
import java.nio.channels.CompletionHandler
import java.nio.ByteBuffer._
import java.util.concurrent.Executors._
import scala.annotation.implicitNotFound
import scala.collection.mutable.ListBuffer

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require 'celluloid'

WORKERS_COUNT = (ARGV[0] || 1).to_i

class Output
  include Celluloid
  
  def puts(msg)
    Kernel.puts(msg)
  end

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source :rubygems

# We are not loading Active Record, nor Active Resources etc.
# We can do this in any app by simply replacing the rails gem
# by the parts we want to use.
gem "actionpack", "~> 3.2"
gem "railties",   "~> 3.2"
gem "tzinfo"

# Let's use thin

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Sublime Text 2 – Useful Shortcuts (Mac OS X)

General

⌘T	go to file
⌘⌃P	go to project
⌘R	go to methods
⌃G	go to line
⌘KB	toggle side bar
⌘⇧P	command prompt

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require 'httparty'
require 'eventmachine'

class Request
  include EM::Deferrable

  @@requests = []

  attr_reader :method, :params

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# Run this file with `RAILS_ENV=production rackup -p 3000 -s thin`
# Be sure to have rails and thin installed.
require "rubygems"

# We are not loading Active Record, nor the Assets Pipeline, etc.
# This could also be in your Gemfile.
gem "actionpack", "~> 3.2"
gem "railties",   "~> 3.2"

require "rails"