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Creating a singleton in Python

...bute. A metaclass essentially decides what the definition of a class means and how to implement that definition. See for example http://code.activestate.com/recipes/498149/, which essentially recreates C-style structs in Python using metaclasses. The thread What are some (concrete) use-cases for met...
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Can I have multiple primary keys in a single table?

... In this example, BOTH userid and userdataid are needed to identify/find a unique row. Not sure what the OP's intention was, but I came here looking to see if I could uniquely identify a row with one of a set of keys. For instance, I would like to identif...
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What does ||= (or-equals) mean in Ruby?

... This question has been discussed so often on the Ruby mailing-lists and Ruby blogs that there are now even threads on the Ruby mailing-list whose only purpose is to collect links to all the other threads on the Ruby mailing-list that discuss this issue. Here's one: The definitive list of ||= ...
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Cross-Domain Cookies

I have two webapps WebApp1 and WebApp2 in two different domains. 14 Answers 14 ...
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vbscript output to console

What is the command or the quickest way to output results to console using vbscript? 5 Answers ...
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When to use MyISAM and InnoDB? [duplicate]

...gned with the idea that your database is queried far more than its updated and as a result it performs very fast read operations. If your read to write(insert|update) ratio is less than 15% its better to use MyISAM. ...
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How to clear/remove observable bindings in Knockout.js?

...form multiple times. Through the user's action, an object/model is created and applied to HTML using ko.applyBindings(). 9 ...
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How to import local packages without gopath

...oject cannot be in $GOPATH. Edit 2: The vendoring method is still valid and works without issue. vendor is largely a manual process, because of this dep and vgo were created. Edit 1: While my old way works it's not longer the "correct" way to do it. You should be using vendor capabilities, vgo...
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Jquery bind double click and single click separately

...uery that would allow me to differentiate between behavior on double click and single click? 14 Answers ...
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Get button click inside UITableViewCell

I have a view controller with a table view and a separate nib for the table cell template. The cell template has some buttons. I want to access the button click along with the index of the cell clicked inside the view controller where I have defined the Table view. ...