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docker run -ti -v $(pwd):/tmp DOCKER_IMAGE /bin/bash

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ssh-keygen -t rsa -b 4096 -m PEM -f jwtRS256.key
# Don't add passphrase
openssl rsa -in jwtRS256.key -pubout -outform PEM -out jwtRS256.key.pub
cat jwtRS256.key
cat jwtRS256.key.pub

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// http://www.2ality.com/2013/09/javascript-unicode.html
function toUTF16(codePoint) {
  var TEN_BITS = parseInt('1111111111', 2);
  function u(codeUnit) {
    return '\\u'+codeUnit.toString(16).toUpperCase();
  }

  if (codePoint <= 0xFFFF) {
    return u(codePoint);
  }

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HTTP Streaming (or Chunked vs Store & Forward)

The standard way of understanding the HTTP protocol is via the request reply pattern. Each HTTP transaction consists of a finitely bounded HTTP request and a finitely bounded HTTP response.

However it's also possible for both parts of an HTTP 1.1 transaction to stream their possibly infinitely bounded data. The advantages is that the sender can send data that is beyond the sender's memory limit, and the receiver can act on

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Rules for good testing

Look at the following image...

...it shows an object being tested.

You can't see inside the object. All you can do is send it messages. This is an important point to make because we should be "testing the interface, and NOT the implementation" - doing so will allow us to change the implementation without causing our tests to break.

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#Install and use pip in a local directory without root/sudo access. #####By: @saurabhshri

##Why? Many users when are given server access, do not have root (or sudo) privileges and can not simply do sudo apt-get install python-pip . Here's an easy way you can install and use pip without root (or sudo) access in a local directory. Note : This works without easy_install too.

##How?

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tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

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CONTENT_TYPES = {:html => 'text/html', :css => 'text/css', :js  => 'application/javascript'}

before do
  request_uri = case request.env['REQUEST_URI']
    when /\.css$/ : :css
    when /\.js$/  : :js
    else          :html
  end
  content_type CONTENT_TYPES[request_uri], :charset => 'utf-8'
end