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Using MemoryStore in production

...})); db.sessions.ensureIndex( { "lastAccess": 1 }, { expireAfterSeconds: 3600 } ) Since stale sessions are removed by the database itself, Express session doesn't need to handle the cleanup by itself. EDIT: It seems like you need to have your own "lastAccess" field. When you access it you update...
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How do I create an empty array/matrix in NumPy?

... 60 To create an empty multidimensional array in NumPy (e.g. a 2D array m*n to store your matrix), ...
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How to configure heroku application DNS to Godaddy Domain?

... BoiseBakedBoiseBaked 60666 silver badges1414 bronze badges add a comment ...
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How do I check to see if a value is an integer in MySQL?

...tch it against a regular expression. c.f. http://forums.mysql.com/read.php?60,1907,38488#msg-38488 as quoted below: Re: IsNumeric() clause in MySQL?? Posted by: kevinclark () Date: August 08, 2005 01:01PM I agree. Here is a function I created for MySQL 5: CREATE FUNCTION IsNumeric (sIn varchar(10...
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How do I check if file exists in Makefile so I can delete it?

... Daniel Trugman 5,6061313 silver badges3535 bronze badges answered Dec 13 '13 at 12:41 holmsholms ...
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How to get a number of random elements from an array?

...nt for sampling from a large population: sample(range(10000000), 60) Sampling without replacement entails tracking either potential selections (the pool) in a list or previous selections in a set. When the number of selections is small compared to the popu...
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partial string formatting

... 60 You can trick it into partial formatting by overwriting the mapping: import string class Form...
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Check if a given key already exists in a dictionary and increment it

... 60 I personally like using setdefault() my_dict = {} my_dict.setdefault(some_key, 0) my_dict[som...
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How to append to a file in Node?

... 60 Does anyone know if fs.appendFile keeps a link to the file open so appends are faster? (rather than open/close each write) nodejs.org/api/...
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Cross-Origin Request Headers(CORS) with PHP headers

... 60 Access-Control-Allow-Headers does not allow * as accepted value, see the Mozilla Documentation ...