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What does Redis do when it runs out of memory?
... policies when maxmemory is reached:
volatile-lru remove a key among the
ones with an expire set, trying to
remove keys not recently used.
volatile-ttl remove a key among the
ones with an expire set, trying to
remove keys with short remaining time
to live.
volatile-random remove a
random key among...
How to output in CLI during execution of PHP Unit tests?
...ning a PHPUnit test, I would like to be able to dump output so I can debug one or two things.
17 Answers
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Writing a compiler in its own language
...r your language in some other language (usually Java or C). Once that is done, you can write a new version of the compiler in language Foo. You use the first bootstrap compiler to compile the compiler, and then use this compiled compiler to compile everything else (including future versions of its...
.NET - How can you split a “caps” delimited string into an array?
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I made this a while ago. It matches each component of a CamelCase name.
/([A-Z]+(?=$|[A-Z][a-z])|[A-Z]?[a-z]+)/g
For example:
"SimpleHTTPServer" => ["Simple", "HTTP", "Server"]
"camelCase" => ["camel", "Case"]
To convert that to just insert spaces between th...
What makes a SQL statement sargable?
...r(myDate) = 2008
The SQL optimizer can't use an index on myDate, even if one exists. It will literally have to evaluate this function for every row of the table. Much better to use:
WHERE myDate >= '01-01-2008' AND myDate < '01-01-2009'
Some other examples:
Bad: Select ... WHERE isNull(F...
How to solve “Could not establish trust relationship for the SSL/TLS secure channel with authority”
...ecommend using a #if DEBUG compiler directive or something similar as mentioned in Luke's comment.
– Rich C
Jun 19 '14 at 16:22
4
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Comparison of Android networking libraries: OkHTTP, Retrofit, and Volley [closed]
...
I'm hoping someone can provide some concrete examples of best use cases for each.
Use Retrofit if you are communicating with a Web service. Use the peer library Picasso if you are downloading images. Use OkHTTP if you need to do HTTP oper...
Static linking vs dynamic linking
...
Dynamic linking can reduce total resource consumption (if more than one process shares the same library (including the version in "the same", of course)). I believe this is the argument that drives it its presence in most environments. Here "resources" includes disk space, RAM, and cache spac...
How to update a pull request from forked repo?
...
You have done it correctly. The pull request will automatically update. The process is:
Open pull request
Commit changes based on feedback in your local repo
Push to the relevant branch of your fork
The pull request will automatica...
How do I change Eclipse to use spaces instead of tabs?
...
For C/C++, one has to also change C/C++->"Code Style". This is by far the most annoying in this otherwise great software.
– dashesy
Sep 6 '13 at 1:11
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