James Boyle jhhb

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

Multiple MySQL Versions for Development

Options included below:

Using Docker docker-compose
Using Homebrew brew

Using Docker (recommended)

This gist was originally created for Homebrew before the rise of Docker, yet it may be best to avoid installing mysql via brew any longer. Instead consider adding a barebones docker-compose.yml for each project and run docker-compose up to start each project's mysql service.

Remove MySQL completely

Open the Terminal
Use mysqldump to backup your databases
Check for MySQL processes with: ps -ax | grep mysql
Stop and kill any MySQL processes
Analyze MySQL on HomeBrew:
```
brew remove mysql
```

There are certain files created by particular editors, IDEs, operating systems, etc., that do not belong in a repository. But adding system-specific files to the repo's .gitignore is considered a poor practice. This file should only exclude files and directories that are a part of the package that should not be versioned (such as the node_modules directory) as well as files that are generated (and regenerated) as artifacts of a build process.

All other files should be in your own global gitignore file:

Create a file called .gitignore in your home directory and add any filepath patterns you want to ignore.
Tell git where your global gitignore file is.

Note: The specific name and path you choose aren't important as long as you configure git to find it, as shown below. You could substitute .config/git/ignore for .gitignore in your home directory, if you prefer.

A Primer on Ruby Method Lookup

Method lookup is a simple affair in most languages without multiple inheritance. You start from the receiver and move up the ancestors chain until you locate the method. Because Ruby allows you to mix in modules and extend singleton classes at runtime, this is an entirely different affair.

I will not build contrived code to exemplify the more complicated aspects of Ruby method lookup, as this will only serve to confuse the matter.

When you pass a message to an object, here is how Ruby finds what method to call:

1. Look within singleton class

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

REPL-driven development in Ruby. Watch this screencast for http://www.confreaks.com/videos/2864-rubyconf2013-repl-driven-development-with-pry
Basic idea is to able to -- Going into pry -- Usage of up/down/cd/$ method to explore through the stack -- Use break method_name to set breakpoints -- edit -c to edit the source code of the file -- try-again to re-run rspec/rack to check if the bug is solved

gem 'pry'

	/**
	* Basic example to pass values between parent and child components in React
	* Seems to be in line with this
	* http://stackoverflow.com/questions/24147331/react-the-right-way-to-pass-form-element-state-to-sibling-parent-elements
	* Now I have the state in parent and child. Is that good or bad? Why would I need it in child?
	* Could probably take that out
	* */
	class Parent extends React.Component {
	constructor(props) {
	super(props);

	# see the current limits
	$ sysctl -a \| grep maxproc

	# increase it
	$ sudo sysctl -w kern.maxproc=xxxx
	$ sudo sysctl -w kern.maxprocperuid=xxx

	# run at startup
	$ sudo vim /etc/sysctl.conf

	> be ruby coerce-speed.rb
	Rehearsal -------------------------------------------------------
	Poro 0.020000 0.000000 0.020000 ( 0.025502)
	MongoidDoc 0.460000 0.000000 0.460000 ( 0.464085)
	VirtusModel 0.210000 0.010000 0.220000 ( 0.219621)
	VirtusModelNoCoerce 0.060000 0.000000 0.060000 ( 0.062512)
	---------------------------------------------- total: 0.760000sec

	user system total real
	Poro 0.010000 0.000000 0.010000 ( 0.004206)