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Scala: join an iterable of strings
How do I "join" an iterable of strings by another string in Scala?
1 Answer
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Can I add comments to a pip requirements file?
... pip requirements file. (Just to explain why that package is on the list.) Can I do this?
2 Answers
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Precedence and bitmask operations
I've come across a (seemingly) very strange case.
1 Answer
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Android SQLite: nullColumnHack parameter in insert/replace methods
...olumn specified:
INSERT INTO foo (somecol) VALUES (NULL);
Hence, in the case where you pass an empty ContentValues to insert(), Android and SQLite need some column that is safe to assign NULL to. If you have several such columns to choose from, pick one via the selection mechanism of your choice:...
regex to match a single character that is anything but a space
...hes any white-space character
\S matches any non-white-space character
You can match a space character with just the space character;
[^ ] matches anything but a space character.
Pick whichever is most appropriate.
share
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Using .sort with PyMongo
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@AndréLaszlo can an OrderedDict() be used?
– zakdances
Mar 12 '13 at 23:16
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Inline code highlighting in reStructuredText
...text` using an explicit role.
It seems that there is a code role, so you can simply type
:code:`a = b + c`
to render an inline code block. To get syntax highlighting you can define a custom role. For example
.. role:: bash(code)
:language: bash
which you can then use like so:
Here is some awe...
Eclipse Autocomplete (percent sign, in Juno)
... IMHO, not a good design choice. My first guess was that this indicates a performance measure (e.g. computational overhead) for using the suggested code.
– Chris Halcrow
Nov 15 '18 at 23:50
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XPath - Selecting elements that equal a value
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The XPath spec. defines the string value of an element as the concatenation (in document order) of all of its text-node descendents.
This explains the "strange results".
"Better" results can be obtained using the expressions below:
//*[text() = 'qwerty']
The above selects every eleme...
What's a quick way to test to see a file exists?
...s in my iPhone app's Documents directory (or any path for that matter). I can enumerate through the directory's files, or I can try to open a specific file. What's the fastest way? I just need to know if the file is there or if it does not exist.
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