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What is resource-ref in web.xml used for?
...eveloper, you don't have to know what your required resources are actually called in production, and as the guy deploying the application, you will have a nice list of names to map to real resources.
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Scala: Nil vs List()
... Besides, Nil references an object directly, whereas List() is a method call.
– Jean-Philippe Pellet
May 12 '11 at 21:07
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Export a graph to .eps file with R
How do I export a graph to an .eps format file? I typically export my graphs to a .pdf file (using the 'pdf' function), and it works quite well. However, now I have to export to .eps files.
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symbolic link: find all files that link to this file
...
It depends, if you are trying to find links to a specific file that is called foo.txt, then this is the only good way:
find -L / -samefile path/to/foo.txt
On the other hand, if you are just trying to find links to any file that happens to be named foo.txt, then something like
find / -lname f...
How get integer value from a enum in Rails?
...in my Rails 5.1 app.
Catering for your case, add this into your Model and call it on the object when needed
def numeric_sale_info
self.class.sale_infos[sale_info]
end
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JavaScript replace/regex
..., but it does not provide a solution to the code from OP. How do I have to call OP's code?
– Black
Jun 17 '19 at 9:59
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How do you suppress output in IPython Notebook?
... -- I have a startup function that I run every time I open a notebook that calls %autosave, and wanted to suppress its output. Thought it would be simple -- but weirdly, contextlib.redirect_stdout and sys.stdout = open(os.devnull, 'w') both fail (end up printing an extra blank line). This should be ...
AWS Error Message: A conflicting conditional operation is currently in progress against this resourc
...kes time and:
...it is not appropriate to make bucket create or delete calls on the
high availability code path of your application...
It is better to create your buckets once and then, you can put as many objects that you like in your existing buckets (or even a single one).
Anyway, when w...
Python: using a recursive algorithm as a generator
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The interior call to getPermutations -- it's a generator, too.
def getPermutations(string, prefix=""):
if len(string) == 1:
yield prefix + string
else:
for i in range(len(string)):
getPermutations(s...
TypeError: sequence item 0: expected string, int found
...int str(u'Libi\xeb')
throws the following error:
Traceback (most recent call last):
File "/Users/tomasz/Python/MA-CIW-Scriptie/RecreateTweets.py", line 21, in <module>
print str(u'Libi\xeb')
UnicodeEncodeError: 'ascii' codec can't encode character u'\xeb' in position 4: ordinal not in...