NANY 2010 Release: "What's My Share?"

[Krishean]

NANY 2010 Entry Information

Application Name	What's My Share?
Version	1.00
Short Description	Have you ever needed to divide up an expense among a group of people? Or split up some reward? The What's My Share page makes it easy.
Supported OSes	Any OS that has a Web Browser capable of JavaScript
Web Page (visit this to use it now)	http://krishean.dcmembers.com/myshare/
System Requirements	Computer Internet Connection Web Browser JavaScript Enabled Brain
Version History	1.00: Initial Release
Author	Krishean
Screencast	http://donationcoder.com/nany2010/sc/whatsmyshare/v1.html by mouser YouTube: http://www.youtube.com/watch?v=qrXCdUE9CWQ

Description
What's my share lets you put in a total amount, a list of people and their percentages, and then it will calculate how much each person owes.
app thought i should enter a project for NANY 2010 and linked me to a post on the forums. I thought it would be easy to do and it ended up being a pretty fun project. A big thanks to mouser and the denizens of the donationcoder irc channel.

Features

• Remember the last data entered in a cookie (except for IE, see known issues)
• Add or remove rows
• Format for printing with the option to add a title to the printout
• Normalization (adjust all share totals proportionately so that they total 100%)
• Clear All button
• Use * to specify an equal share of the remaining amount
• Warning displayed if percent is higher than 100%
• Warning displayed if shares do not add up to the total amount

Planned Features
There are no additional planned features, but i might add some more if they are suggested.

Screencast

Screenshot
NANY 2010 Release: "What's My Share?"

Usage
Start by entering the total amount to be divided up between participants. Then add each person followed by their share percentage. As you fill in the values, the amount of their share will be calculated and displayed instantly.

Known Issues
Internet Explorer is unable to use the remember last data function because of issues with the json handling functions.

[mouser]

You did a great job with this -- really really great 

[Perry Mowbray]

This is great! 

One small issue: the Normalize button mucks up any rows that are proportioned with a "*"

Unnormalized:


Normalized:

[mouser]

That's basically by design i think, buy maybe the alert box triggered when you click Normalize should tell you whats going to happen and let you cancel.

[Perry Mowbray]

The alert box does say what's happening... just not that the * entries will be zeroed out.

Essentially what happens when you normalize a list with * entries, is that it removes, or zeros, those entries.

Really, Normalizing and * entries are functionally opposite: you never would want to normalize a list with * entries unless you wanted to remove them?

  Which basically means I'm understanding it a bit better now...

[mouser]

you never would want to normalize a list with * entries unless you wanted to remove them?

except possibly as step 1 of a process whereby you expected to do further tweaking of shares.

[mouser]

There really are only 2 sensible options when normalizing with *:

• one option is to simply do nothing
• and the other option is to do what krish is doing, to 0 out the * and normalize the rest

[Perry Mowbray]

you never would want to normalize a list with * entries unless you wanted to remove them?

except possibly as step 1 of a process whereby you expected to do further tweaking of shares.

-mouser (December 30, 2009, 08:55 PM)

The tweaking concept is interesting: I wondered if slider controls might make that easier? Especially on the * Entries (which would make them something other than *)

[mouser]

might be overkill though.. i think it's very functional as is.

[mouser]

Actually i realized there is a 3rd reasonable alternative for how to normalize when there are * entries, which is to replace the * with their computed explicit shares.