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Google maps API V3 - multiple markers on exact same spot

...rieving a list of geo coords via JSON and popping them onto a google map. All is working well except in the instance when I have two or more markers on the exact same spot. The API only displays 1 marker - the top one. This is fair enough I suppose but would like to find a way to display them all...
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Best explanation for languages without null

... that every reference type gets this extra state in its space that is typically undesired. A string variable could be any sequence of characters, or it could be this crazy extra null value that doesn't map into my problem domain. A Triangle object has three Points, which themselves have X and Y va...
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Efficiently updating database using SQLAlchemy ORM

...ngs in mind when using the ORM and plain SQL in the same transaction. Basically, from one side, ORM data modifications will only hit the database when you flush the changes from your session. From the other side, SQL data manipulation statements don't affect the objects that are in your session. So...
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What is the difference between '/' and '//' when used for division?

...floating point division, and the latter is floor division, sometimes also called integer division. In Python 2.2 or later in the 2.x line, there is no difference for integers unless you perform a from __future__ import division, which causes Python 2.x to adopt the 3.x behavior. Regardless of the ...
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Event system in Python

...r methods', which is a simple implementation of the Observer pattern. Basically, the handler methods (callables) are stored in an array and are each called when the event 'fires'. Publish-Subscribe The disadvantage of Observer event systems is that you can only register the handlers on the actual Ev...
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How to change Rails 3 server default port in develoment?

... First - do not edit anything in your gem path! It will influence all projects, and you will have a lot problems later... In your project edit script/rails this way: #!/usr/bin/env ruby # This command will automatically be run when you run "rails" with Rails 3 gems installed from the root...
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Django database query: How to get object by id?

Django automatically creates an id field as primary key. 6 Answers 6 ...
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How to access and test an internal (non-exports) function in a node.js module?

... This should absolutely be the top answer. It does not require rewriting all existing modules with NODE_ENV specific exports, nor does it involve reading in the module as text. – Adam Yost Jul 22 '15 at 16:00 ...
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Useful code which uses reduce()? [closed]

...found for it besides + and * were with and and or, but now we have any and all to replace those cases. foldl and foldr do come up in Scheme a lot... Here's some cute usages: Flatten a list Goal: turn [[1, 2, 3], [4, 5], [6, 7, 8]] into [1, 2, 3, 4, 5, 6, 7, 8]. reduce(list.__add__, [[1, 2, 3]...
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Migrating from JSF 1.2 to JSF 2.0

... JSP 2.x If you're using JSP 2.x and want to keep using it, then you basically don't need to change anything else. Gradually upgrading If you're already using a suffix url-pattern for the FacesServlet, like *.jsf, then it's good to know that the FacesServlet will first scan for *.xhtml file and ...