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Is Zookeeper a must for Kafka?
...d to have some way to coordinating tasks, state management, configuration, etc across a distributed system. Some projects have built their own mechanisms (think of the configuration server in a MongoDB sharded cluster, or a Master node in an Elasticsearch cluster). Others have chosen to take advanta...
How to access array elements in a Django template?
...ss individual elements of the array in the array (e.g. arr[0] , arr[1] ) etc. instead of looping through the whole array.
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Facebook Graph API v2.0+ - /me/friends returns empty, or only friends who also use my application
...explain all the options available to developers in order to invite friends etc.
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What are some (concrete) use-cases for metaclasses?
...I found that I was able to increment the figure count, call draw manually, etc, but I needed to do these before and after every plotting call. So to create both an interactive plotting wrapper and an offscreen plotting wrapper, I found it was more efficient to do this via metaclasses, wrapping the ...
What is the difference between loose coupling and tight coupling in the object oriented paradigm?
...ul it would be to peel off your skin, dye it, and then to paste it back on etc? Changing your skin is difficult because it is tightly coupled to your body. You just can't make changes easily. You would have to fundamentally redesign a human being in order to make this possible.
Key Point #1: In o...
RESTful on Play! framework
...want to create.
Depending on how you want to return the result (XML, JSON etc), there are a few methods you can use. For example, using the renderJSON method, allows the results to be rendered very easily. If you want to render XML, then you can just do so in the same way as you would build an HTML...
What is difference between Errors and Exceptions? [duplicate]
... programmatically. Examples include FileNotFoundException, ParseException, etc. A programmer is expected to check for these exceptions by using the try-catch block or throw it back to the caller
On the other hand we have unchecked exceptions. These are those exceptions that might not happen if eve...
Traits in PHP – any real world examples/best practices? [closed]
...ke horizontal code re-use for common stuff like logging, security, caching etc.
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What's an Aggregate Root?
...hat makes up the "computer, e.g. RGB lighting, Hardware, Power Supply, OS, etc).
– Captain Kenpachi
Jan 7 at 13:52
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How to check whether an array is empty using PHP?
...easiest way to check if it's empty? I'm assuming I can do so as soon as I fetch the $gameresult array into $gamerow ? In this case it would probably be more efficient to skip exploding the $playerlist if it's empty, but for the sake of argument, how would I check if an array is empty as well?
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