yoavniran

The Ultimate Unit Testing Cheat-sheet

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• Sinon Chai
• Chai
• Sinon

jhngrant

# PostgreSQL can be on a remote server but you'll need root privileges in Linux and superuser in PostgreSQL.

# First install build tools

sudo su
aptitude install build-essential
aptitude install postgresql-server-dev-9.4

# Clone and build the PL/pgSQL server-side debugger

carcinocron

// Run this in the F12 javascript console in chrome
// if a redirect happens, the page will pause
// this helps because chrome's network tab's
// "preserve log" seems to technically preserve the log
// but you can't actually LOOK at it...
// also the "replay xhr" feature does not work after reload
// even if you "preserve log".

window.addEventListener("beforeunload", function() { debugger; }, false)

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

kern

Kubernetes + AWS ECR = ❤️

Makefile and YAML templates for automating the use of AWS Elastic Container Registry with Kubernetes.

Based off of this awesome Redsaid blog post.

Requirements

• Amazon ECR, along with your AWS account ID and the region your ECR is in
• AWS CLI

deebloo

// https://github.com/deebloo/rxjs-worker
var observable = Observable.of([0, 1, 2, 3, 4]);

observable
  .map(function (data) {
    return data.concat([5, 6, 7, 8, 9]);
  })
  .workerMap(function (data) {
    return data.concat([10,11,12,13,14]);;
  })

creationix

I've designed a lot of RPC protocols in my career. One pattern that's worked well basically goes as follows:

// Client calls: print('Hello World\n')
-> [1, "print", "Hello World!\n"]
// Server sends return value (or lack of return vvalue)
<- [-1]

// Client calls: add(1, 2)
-> [2, "add", 1, 2]