Elliot Block elliot42

## gist:841379

      
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                elliot42
                / gist:841379
            
            
              Created
              February 23, 2011 22:53
            
          
    Q. Why do CorporateDatabase and Store both have borrowRentable() and returnRentable()?
A.  Store::borrowRentable() only deals with updating the store's own inventory.
CustomerDatabase::borrowRentable() deals with parsing streams, calling the store to update the store's inventory, as well as creating a new Transaction object and calling the Customer to update itself.  You can see the differences below.
When CorporateDatabase is loading transactions, it will look something like this:
switch (first_char_we_found_on_the_stream) {

  
## gist:918801

      
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                elliot42
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              Created
              April 14, 2011 02:37
            
          
    "Your standard database toolkit will tempt you to reach for a familiar abstraction layer: transactional isolation. If you can ensure that only one process can access the B-Tree at any time, then you don't have to worry about writes altering the data-structure while reads are in progress.
Homey don't play that: transactions are a form of locking, and I un-friended locking years ago, for posting too many lame updates to my log files."

from http://jchrisa.net/drl/_design/sofa/_list/post/post-page?startkey=[%22CouchDB-Implements-a-Fundamental-Algorithm%22]


## gist:3306898
title,category,creator,hits
save my dog,animals,joe,487,2012-08-01
save the geckos,animals,roberta,19744,2012-08-01
save my kidneys,health,joe,220,2012-08-01
save my lungs,health,angela,17763,2012-08-01
save the oceans,environment,matt,15385,2012-08-01
save the mountains,environment,joe,3458,2012-08-01
save my cat,animals,susan,25381,2012-08-02
save my dog,animals,joe,5594,2012-08-02
save the whales,animals,jim,31511,2012-08-02

## monitor setup
elliot@t16:~$ xrandr -q
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 8192 x 8192
LVDS1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 246mm x 185mm
   1024x768       50.0*+   60.0     40.0
   800x600        60.3     56.2
   640x480        60.0     59.9
VGA1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 519mm x 324mm
   1920x1200      60.0 +
   1600x1200      60.0
   1680x1050      60.0

## gist:4504500

      
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                elliot42
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              Created
              January 10, 2013 18:24
            
          
    Three resolutions of information:

Questions on specific projects (not well handled by morning sync)


Need more available free time during day to ask specific questions, detailed dives


What projects are working on (well handled by morning sync)


Vision for the project (not well handled by morning sync)


longer conversation


## ordered_sets.rb
irb(main):064:0> fools
=> [1, 2, 3, 4, 5]

irb(main):003:0> a = [:a, [2, 3]]
=> [:a, [2, 3]]

irb(main):004:0> b = [:b, [4, 5]]
=> [:b, [4, 5]]

irb(main):059:0> [a, b].reduce([fools, {}]) do |h, s|

## gist:4522631
The Four Metrics You Care About As A SaaS Business

The majority of small SaaS businesses can be entirely described by four
metrics: average plan value (over the customer base), new trials per
month, conversion rate of the trial, and churn (loss of paying accounts
over time).

McKenzie, Patrick (2012-12-02). Sell More Software: Website Conversion
Optimization for Software Developers (Kindle Locations 98-100).  .
Kindle Edition.

## gist:5121649
# $HOME/.xprofile
setxkbmap -option ctrl:nocaps
if [ -f $HOME/.Xmodmap ]; then
    /usr/bin/xmodmap $HOME/.Xmodmap
fi

# $HOME/.Xmodmap
clear Lock
add Control = Caps_Lock

## notes.txt
JS Include Structures

Multiple add_javascripts
- Clear code
- Bad for perf (multiple HTTP requests)

ONe big manifest
-

Our convention:

## gist:5947837
<html>
    <head>
        <script type="text/javascript" src="jquery-1.10.2.js"></script>
        <script type="text/javascript" src="underscore.js"></script>
        <script type="text/javascript" src="backbone.js"></script>
        <script type="text/javascript">
            $(function() {
                var units = ["hour", "day", "month"];
                var people = ["A", "B", "C", "D"];
	title,category,creator,hits
	save my dog,animals,joe,487,2012-08-01
	save the geckos,animals,roberta,19744,2012-08-01
	save my kidneys,health,joe,220,2012-08-01
	save my lungs,health,angela,17763,2012-08-01
	save the oceans,environment,matt,15385,2012-08-01
	save the mountains,environment,joe,3458,2012-08-01
	save my cat,animals,susan,25381,2012-08-02
	save my dog,animals,joe,5594,2012-08-02
	save the whales,animals,jim,31511,2012-08-02
	elliot@t16:~$ xrandr -q
	Screen 0: minimum 320 x 200, current 1024 x 768, maximum 8192 x 8192
	LVDS1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 246mm x 185mm
	1024x768 50.0*+ 60.0 40.0
	800x600 60.3 56.2
	640x480 60.0 59.9
	VGA1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 519mm x 324mm
	1920x1200 60.0 +
	1600x1200 60.0
	1680x1050 60.0
	irb(main):064:0> fools
	=> [1, 2, 3, 4, 5]

	irb(main):003:0> a = [:a, [2, 3]]
	=> [:a, [2, 3]]

	irb(main):004:0> b = [:b, [4, 5]]
	=> [:b, [4, 5]]

	irb(main):059:0> [a, b].reduce([fools, {}]) do \|h, s\|
	The Four Metrics You Care About As A SaaS Business

	The majority of small SaaS businesses can be entirely described by four
	metrics: average plan value (over the customer base), new trials per
	month, conversion rate of the trial, and churn (loss of paying accounts
	over time).

	McKenzie, Patrick (2012-12-02). Sell More Software: Website Conversion
	Optimization for Software Developers (Kindle Locations 98-100). .
	Kindle Edition.
	# $HOME/.xprofile
	setxkbmap -option ctrl:nocaps
	if [ -f $HOME/.Xmodmap ]; then
	/usr/bin/xmodmap $HOME/.Xmodmap
	fi

	# $HOME/.Xmodmap
	clear Lock
	add Control = Caps_Lock
	JS Include Structures

	Multiple add_javascripts
	- Clear code
	- Bad for perf (multiple HTTP requests)

	ONe big manifest
	-

	Our convention:
	<html>
	<head>
	<script type="text/javascript" src="jquery-1.10.2.js"></script>
	<script type="text/javascript" src="underscore.js"></script>
	<script type="text/javascript" src="backbone.js"></script>
	<script type="text/javascript">
	$(function() {
	var units = ["hour", "day", "month"];
	var people = ["A", "B", "C", "D"];