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What is tail call optimization?
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"The only situation" is a bit too absolute; there's also TRMC, at least in theory, which would optimize (cons a (foo b)) or (+ c (bar d)) in tail position in the same way.
– Will Ness
Sep 20 '16 at 16:58
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Redis key naming conventions?
...g ASCII NUL characters as my separators (since Redis and Python are both 8-bit clean). It looks a little ugly if you're looking at raw keys, but the idea is to hide it behind an abstraction layer. Colon and pipe symbols are obvious alternatives so long as the components of your name space are eithe...
Why is Linux called a monolithic kernel?
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@Adam: I disagree. The old-style 16-bit Windows was monolithic kernel, as was Windows 95 and the like. But NT-based editions of Windows, including all Server versions plus Vista and 7, are clearly microkernel or perhaps hybrid, depending on what definition of "...
How to declare a global variable in a .js file
...te a new global namespace
exportGlobal("someothernamespace", {});
It's a bit more typing, but it makes your global variable management future-proof.
Disclaimer: Part of this idea came to me when looking at previous versions of stacktrace.js.
I reckon, one can also use Webpack or other tools to ...
Conditional Variable vs Semaphore
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@VladislavsBurakovs To clarify a bit, the reason that the condition may still be false to a thread that has just woken up (resulting in a spurious wakeup) is that there might have been a context switch before the thread got a chance to check the condition ag...
How do I set a background-color for the width of text, not the width of the entire element, using CS
...ugh, you will see gaps. To fix this you can add a box-shadow with a little bit of grow to your span. You will also want box-decoration-break: clone; for FireFox to render it properly.
EDIT: If you're getting issues in IE11 with the box-shadow, try adding an outline: 1px solid [color]; as well for I...
What's the purpose of git-mv?
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@WillHancock I have used git a bit more now, and can answer you more definitively: depending on your git client and its options, you will be able to trace the file past the rename if the file changed internally little enough that it considers it a rename. ...
What does “where T : class, new()” mean?
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@NerdFury: Thanks. That is an important bit. Corrected.
– Evan Mulawski
Jan 19 '11 at 16:44
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Is it secure to store passwords as environment variables (rather than as plain text) in config files
I work on a few apps in rails, django (and a little bit of php), and one of the things that I started doing in some of them is storing database and other passwords as environment variables rather than plain text in certain config files (or in settings.py, for django apps).
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Master-master vs master-slave database architecture?
...arching the various database architectures as well. I have compiled a good bit of information that might be relevant to someone else researching in the future. I came across
Master-Slave Replication
Master-Master Replication
MySQL Cluster
I have decided to settle for using MySQL Cluster for my ...