BlockmanCodes

INFURA_URL_TESTNET=<your_url_and_key>

Geoff-Ford

Eric Elliott's "Master the JavaScript Interview" Series

A collection of links to the "Master the JavaScript Interview" series of medium stories by Eric Elliott.

Not part of the series but a good grounding.

• The Two Pillars of JavaScript - Part 1
• The Two Pillars of JavaScript - Part 2
• 10 Interview Questions Every JavaScript Developer Should Know

Master the JavaScript Interview

lupomontero

/*
Búsqueda binaria (Binary Search): Implementación de ejemplo.

Recibe un array ordenado y el elemento a buscar. Si encuentra el elemento
devolverá el índice del elemento encontrado, si no se encuentra devolverá `-1`.
*/


function binarySearch(array, item) {

dannycoates

Experimenting with AWS Lambda for ETL

A lot of us are interested in doing more analysis with our service logs so I thought I'd share an experiment I'm doing with Sync. The main idea is to transform the raw logs into something that'll be nice to query and generate reports with in Redshift.

The Pipeline

Logs make their way into an S3 bucket (lets call it the 'raw' bucket) where we've got a lambda listening for new data. This lambda reads the raw heka protobuf gzipped data, does some transformation and writes a new file to a different S3 bucket (the 'processed' bucket) in a format that is redshift friendly (like json or csv). There's another lambda listening on the processed bucket that loads this data into Redshift.

squarism

Tabs and Windows

Function	Shortcut
New Tab	⌘ + T
Close Tab or Window	⌘ + W (same as many mac apps)
Go to Tab	⌘ + Number Key (ie: ⌘2 is 2nd tab)
Go to Split Pane by Direction	⌘ + Option + Arrow Key
Cycle iTerm Windows	⌘ + backtick (true of all mac apps and works with desktops/mission control)

jctosta

Screen Quick Reference

Basic

Description	Command
Start a new session with session name	screen -S <session_name>
List running sessions / screens	screen -ls
Attach to a running session	screen -x
Attach to a running session with name	screen -r

knzai

# RSpec's subject method, both implicitly and explicitly set, is useful for
# declaratively setting up the context of the object under test. If you provide a
# class for your describe block, subject will implicitly be set to a new instance
# of this class (with no arguments passed to the constructor). If you want
# something more complex done, such as setting arguments, you can use the
# explicit subject setter, which takes a block.
describe Person do
  context "born 19 years ago" do
    subject { Person.new(:birthdate => 19.years.ago }
    it { should be_eligible_to_vote }