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Order Bars in ggplot2 bar graph
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edited Feb 18 '19 at 23:04
Gregor Thomas
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Why does the C# compiler not fault code where a static method calls an instance method?
...elow answer was written in 2012, before the introduction of C# 7.3 (May 2018). In What's new in C# 7.3, the section Improved overload candidates, item 1, it is explained how the overload resolution rules have changed so that non-static overloads are discarded early. So the below answer (and this ent...
How to check if a URL is valid
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Use the URI module distributed with Ruby:
require 'uri'
if url =~ URI::regexp
# Correct UR...
PostgreSQL function for last inserted ID
...value); it's not standard SQL (who cares); it's available since Postgresql 8.2 (Dec 2006...)
Conclusion: If you can, go for option 3. Elsewhere, prefer 1.
Note: all these methods are useless if you intend to get the last inserted id globally (not necessarily by your session). For this, you must ...
SVN remains in conflict?
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RoaltRoalt
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Purpose of #!/usr/bin/python3
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268
#!/usr/bin/python3 is a shebang line.
A shebang line defines where the interpreter is located. ...
The $.param( ) inverse function in JavaScript / jQuery
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Vagrant error: NFS is reporting that your exports file is invalid
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