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How to listen for changes to a MongoDB collection?
I'm creating a sort of background job queue system with MongoDB as the data store. How can I "listen" for inserts to a MongoDB collection before spawning workers to process the job? Do I need to poll every few seconds to see if there are any changes from last time, or is there a way my script can wa...
What's the best way to iterate over two or more containers simultaneously
C++11 provides multiple ways to iterate over containers. For example:
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Why no love for SQL? [closed]
I've heard a lot lately that SQL is a terrible language, and it seems that every framework under the sun comes pre-packaged with a database abstraction layer.
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How to get xdebug var_dump to show full object/array
I am using xdebug (php_xdebug-2.1.2-5.3-vc9.dll) on WAMP . When I use var_dump on a large object or variable it does not show the full variable.
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How to inherit from a class in javascript?
In PHP/Java one can do:
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jquery UI Sortable with table and tr width
I am using jQuery UI sortable to make my table grid sortable. The code seems to work fine but because I am not adding width to td s, when I drag the tr it shrinks the content.
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How to prevent going back to the previous activity?
When the BACK button is pressed on the phone, I want to prevent a specific activity from returning to its previous one.
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best way to add license section to iOS settings bundle
My iOS application uses a number of third party components licensed under Apache 2.0 and similar licenses, which requires me to include various bits of text, this kind of thing:
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How to calculate md5 hash of a file using javascript
Is there a way to calculate the MD5 hash of a file before the upload to the server using Javascript?
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Index all *except* one item in python
Is there a simple way to index all elements of a list (or array, or whatever) except for a particular index? E.g.,
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