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What is the best way to clear a session variable in rails?
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This is the correct way to do it. session[:message] = nil will leave the :message key in the session hash, this will destroy the key and value, as if your session never had any value assigned to that key.
– Brett Ben...
django MultiValueDictKeyError error, how do I deal with it
... to save a object to my database, but it's throwing a MultiValueDictKeyError error.
7 Answers
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Can I use the range operator with if statement in Swift?
Is it possible to use the range operator ... and ..< with if statement. Maye something like this:
6 Answers
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How to make a Java Generic method static?
...tatic method. Adding static to the method signature results in compile errors.
4 Answers
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How can I view a git log of just one user's commits?
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This works for both git log and gitk - the 2 most common ways of viewing history.
You don't need to use the whole name:
git log --author="Jon"
will match a commit made by "Jonathan Smith"
git log --author=Jon
and
git log --author...
Representing graphs (data structure) in Python
...t data structure (e.g. dicts/tuples/dict(tuples)) will be fast but also memory efficient? One must be able to do various graph operations on it.
As pointed out, the various graph representations might help. How does one go about implementing them in Python? As for the libraries, this ques...
Looping through the content of a file in Bash
... from standard input, you can open the file using a different file descriptor:
while read -u 10 p; do
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done 10<peptides.txt
Here, 10 is just an arbitrary number (different from 0, 1, 2).
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How do I use DateTime.TryParse with a Nullable?
....TryParse("some date text", out d2);
if (success) d=d2;
(There might be more elegant solutions, but why don't you simply do something as above?)
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Is there Unicode glyph Symbol to represent “Search” [closed]
...-POINTING MAGNIFYING GLASS (????).
You should use (in HTML) &#x1F50D; or &#x1F50E;
They are, however not supported by many fonts (fileformat.info only lists a few fonts as supporting the Codepoint with a proper glyph).
Also note that they are outside of the BMP, so some Unicode-capable so...
python assert with and without parenthesis
... it through a full interpreter, not through IDLE. Because assert is a keyword and not a function, you are actually passing in a tuple as the first argument and leaving off the second argument.
Recall that non-empty tuples evaluate to True, and since the assertion message is optional, you've essent...