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How to verify an XPath expression in Chrome Developers tool or Firefox's Firebug?
...hown in Lawrence's answer
Third party extensions (not really necessary in most of the cases, could be an overkill)
Here is how you search XPath in Elements panel:
Press F12 to open Chrome Developer Tool
In "Elements" panel, press Ctrl+F
In the search box, type in XPath or CSS Selector, if elemen...
How does the ThreadStatic attribute work?
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Is there any way to cover all the cases (multi-threading, web app multi-threading with async/await, etc) so that a single piece of work (e.g. a single web request, the processing of a single queue message, etc) get its own version of the variable, no ...
How do I get the current time zone of MySQL?
...ng the web server and the DB server it's talking to are set to [if not actually in] the same timezone isn't a huge leap.) But beware that (as with MySQL), you can set the timezone that PHP uses (date_default_timezone_set), which means it may report a different value than the OS is using. If you're i...
How to scp in Python?
What's the most pythonic way to scp a file in Python? The only route I'm aware of is
14 Answers
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No newline at end of file
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It indicates that you do not have a newline (usually '\n', aka CR or CRLF) at the end of file.
That is, simply speaking, the last byte (or bytes if you're on Windows) in the file is not a newline.
The message is displayed because otherwise there is no way to tell the dif...
return statement vs exit() in main()
Should I use exit() or just return statements in main() ? Personally I favor the return statements because I feel it's like reading any other function and the flow control when I'm reading the code is smooth (in my opinion). And even if I want to refactor the main() function, having return...
How to make git ignore changes in case?
...t too sure what is going on here, but sometimes a particular file in my repository will change the case of it's name. e.g.,:
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How can I convert NSDictionary to NSData and vice versa?
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This is a very elegant solution for most Mac OS developers.
– mjl007
Mar 27 '18 at 23:31
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Check if at least two out of three booleans are true
...(b || c) || (b && c);
}
It tests a and b exactly once, and c at most once.
References
JLS 15.25 Conditional Operator ? :
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No module named pkg_resources
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July 2018 Update
Most people should now use pip install setuptools (possibly with sudo).
Some may need to (re)install the python-setuptools package via their package manager (apt-get install, yum install, etc.).
This issue can be highly depe...