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Redis: possible to expire an element in an array or sorted set?
...core range, which could be done periodically, or only on every write, with reads always ignoring the out of range elements, by reading only a range of scores.
More here: https://groups.google.com/forum/#!topic/redis-db/rXXMCLNkNSs
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MySQL Creating tables with Foreign Keys giving errno: 150
...er set and collation as the corresponding PK column(s).
If there is data already in the Child table, every value in the FK column(s) must match a value in the Parent table PK column(s). Check this with a query like:
SELECT COUNT(*) FROM Child LEFT OUTER JOIN Parent ON Child.FK = Parent.PK
WHERE Pa...
Java: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification
... .pem are commonly used file extensions for the same file format. If you already have the file, just run the second command and pass it into the -file argument.
– Gabe Martin-Dempesy
Mar 14 '17 at 19:15
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Merging 2 branches together in GIT
... different heads
to get the changes from B and C back to A, checkout A (already done in this example) and then use the merge command:
# create an octopus merge
$ git merge B C
your history will then look something like this:
…-o-o-x-------A
|\ /|
| B---/ |
\ /
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How do I set a textbox's text to bold at run time?
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The bold property of the font itself is read only, but the actual font property of the text box is not. You can change the font of the textbox to bold as follows:
textBox1.Font = new Font(textBox1.Font, FontStyle.Bold);
And then back again:
textBox1.Font = ...
Getting output of system() calls in Ruby
...d capturing the latter is convoluted and messy.
The best answer in this thread so far mentions Open3, but not the functions that are best suited for the task. Open3.capture2, capture2e and capture3 work like system, but returns two or three arguments:
out, err, st = Open3.capture3("echo #{untruste...
jQuery Ajax calls and the Html.AntiForgeryToken()
...pp the mitigation to CSRF attacks following the informations that I have read on some blog post around the internet. In particular these post have been the driver of my implementation
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How to include external Python code to use in other files?
...yfile.py')
Python 2 and 3: alternative 2
exec(compile(open('myfile.py').read()))
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How to count objects in PowerShell?
As I'm reading in the PowerShell user guide, one of the core PowerShell concepts is that commands accept and return objects instead of text. So for example, running get-alias returns me a number of System.Management.Automation.AliasInfo objects:
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Setting a timeout for socket operations
...ddress, timeout)
Or socket.setSoTimeout(timeout) for setting a timeout on read() operations.
See: http://docs.oracle.com/javase/7/docs/api/java/net/Socket.html
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