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Error: request entity too large

... I had the same error recently, and all the solutions I've found did not work. After some digging, I found that setting app.use(express.bodyParser({limit: '50mb'})); did set the limit correctly. When adding a console.log('Limit file size: '+limit); in node_m...
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How do I get the MAX row with a GROUP BY in LINQ query?

... (s => s.uid, tv => tv.uid, asdf => asdf.uid). Linq will automatically recognize it as selecting over elements of type Serial. – Michael Mar 17 '11 at 17:03 add a com...
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Pandas: create two new columns in a dataframe with values calculated from a pre-existing column

...he top answer is flawed in my opinion. Hopefully, no one is mass importing all of pandas into their namespace with from pandas import *. Also, the map method should be reserved for those times when passing it a dictionary or Series. It can take a function but this is what apply is used for. So, if ...
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How to get the index of a maximum element in a numpy array along one axis

...eading. It calculates the index of the maximum element of the array across all axis, not along a given axis as the OP asks: it is wrong. Moreover, if there is more than one maximum, it retrieves the indices of only the first maximum: this should be pointed out. Try with a = np.array([[1,4,3],[4,3,1]...
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Decoding and verifying JWT token using System.IdentityModel.Tokens.Jwt

... Within the package there is a class called JwtSecurityTokenHandler which derives from System.IdentityModel.Tokens.SecurityTokenHandler. In WIF this is the core class for deserialising and serialising security tokens. The class has a ReadToken(String) method tha...
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How can I obtain the element-wise logical NOT of a pandas Series?

... Wierd, I actually tested the tilde as it was mentioned in the documentation, but it didn't perform the same as np.invert :S – root Apr 14 '13 at 13:11 ...
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How to delete migration files in Rails 3

... I usually: Perform a rake db:migrate VERSION=XXX on all environments, to the version before the one I want to delete. Delete the migration file manually. If there are pending migrations (i.e., the migration I removed was not the...
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If vs. Switch Speed

Switch statements are typically faster than equivalent if-else-if statements (as e.g. descibed in this article ) due to compiler optimizations. ...
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Akka Kill vs. Stop vs. Poison Pill?

...fference between Akka Stop/Poison Pill vs. Kill ? The book offers just a small explaination "Kill is synchronous vs. Poison pill is asynchronous." But in what way? Does the calling actor thread lock during this time? Are the children actors notified during kill, post-stop envoked, etc? Example uses ...
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Best practices for reducing Garbage Collector activity in Javascript

I have a fairly complex Javascript app, which has a main loop that is called 60 times per second. There seems to be a lot of garbage collection going on (based on the 'sawtooth' output from the Memory timeline in the Chrome dev tools) - and this often impacts the performance of the application. ...