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How do sessions work in Express.js with Node.js?
...e like a placeholder for the session than a holder of actual session data.
From here, it looks like this session data on the server is by default held in memory, although that could be altered to whatever storage form implements the appropriate API.
So if you want to check things without a specifi...
C++ semantics of `static const` vs `const`
...d reason to use it.
Within a function, the second version can be computed from parameters. In C or C++ it doesn't have to be a compile-time constant like some other languages require.
Within a class, basically the same thing as for functions. An instance const value can be computed in the ctor-ini...
Setting a timeout for socket operations
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socket.connect(new InetSocketAddress(ipAddress, port), 1000);
Quoting from the documentation
connect
public void connect(SocketAddress endpoint, int timeout) throws IOException
Connects this socket to the server with a specified timeout value. A timeout of zero is interpreted as an i...
How can I check if a string represents an int, without using try/except?
...he code above to work in Python 3.5, and to include the check_int function from the currently most voted up answer, and to use the current most popular regex that I can find for testing for integer-hood. This regex rejects strings like 'abc 123'. I've added 'abc 123' as a test value.
It is Very Int...
Determine if a String is an Integer in Java [duplicate]
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Or you can enlist a little help from our good friends at Apache Commons : StringUtils.isNumeric(String str)
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Is it OK to leave a channel open?
... not constitute a reference to the channel object, and so does not keep it from being garbage collected.
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How to find out which view is focused?
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It is possible to get hosting Activity from a View and call getCurrentFocus(), but not that reliable.
– Eido95
Dec 29 '16 at 12:19
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ICollection Vs List in Entity Framework
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ICollection differs from IEnumerable in that you can actually add items to the collection, whereas with IEnumerable you can't. So in your POCO classes, for instance, you want to use ICollection if you intend to allow the collection to be added t...
Concept of void pointer in C programming
...ned at 4-byte boundary to be dereferenced).
For example, reading uint16_t from void*:
/* may receive wrong value if ptr is not 2-byte aligned */
uint16_t value = *(uint16_t*)ptr;
/* portable way of reading a little-endian value */
uint16_t value = *(uint8_t*)ptr
| ((*((uint8_t*)ptr...
How do I PHP-unserialize a jQuery-serialized form?
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You shouldn't have to unserialize anything in PHP from the jquery serialize method. If you serialize the data, it should be sent to PHP as query parameters if you are using a GET method ajax request or post vars if you are using a POST ajax request. So in PHP, you would acce...