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Why does .NET foreach loop throw NullRefException when collection is null?
...umerable.Empty<int>())
{
System.Console.WriteLine(string.Format("{0}", i));
}
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Microsoft Web API: How do you do a Server.MapPath?
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edited Feb 9 '18 at 1:08
Frederik Struck-Schøning
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How are Python's Built In Dictionaries Implemented?
...w is a logical representation of a Python hash table. In the figure below, 0, 1, ..., i, ... on the left are indices of the slots in the hash table (they are just for illustrative purposes and are not stored along with the table obviously!).
# Logical model of Python Hash table
-+---------------...
Does PNG contain EXIF data like JPG?
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Edit: Version 1.5.0 (July 2017) of the Extensions to the PNG 1.2 Specification has finally added an EXIF chunk. It remains to be seen if encoders-decoders begin to support it.
Original: PNG does not embed EXIF info. It allows, however, to emb...
Maximum length of HTTP GET request
...cific error/exception when the POST limit is exceeded, usually as an HTTP 500 error.
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How do I get the coordinates of a mouse click on a canvas element?
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Edit 2018: This answer is pretty old and it uses checks for old browsers that are not necessary anymore, as the clientX and clientY properties work in all current browsers. You might want to check out Patriques Answer for a simpler...
Lazy Method for Reading Big File in Python?
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440
To write a lazy function, just use yield:
def read_in_chunks(file_object, chunk_size=1024):
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Safe integer parsing in Ruby
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Ruby has this functionality built in:
Integer('1001') # => 1001
Integer('1001 nights')
# ArgumentError: invalid value for Integer: "1001 nights"
As noted in answer by Joseph Pecoraro, you might want to watch for strings that ar...
Correct way to write loops for promise.
...dition, action));
});
promiseFor(function(count) {
return count < 10;
}, function(count) {
return db.getUser(email)
.then(function(res) {
logger.log(res);
return ++count;
});
}, 0).then(console.log.bind(console, 'all done'));
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Reconnection of Client when server reboots in WebSocket
... 5 seconds
setTimeout(function(){start(websocketServerLocation)}, 5000);
};
}
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