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Git: what is a dangling commit/blob and where do they come from?
... blobs, and even some things that git does for you to help avoid loss of information.
Eventually (conditionally, according to the git gc man page) it will perform garbage collection and clean these things up. You can also force it by invoking the garbage collection process, git gc.
For more infor...
Performance surprise with “as” and nullable types
...IT compiler generates a call to a helper function, JIT_Unbox() that can perform a cast to an arbitrary value type. I don't have a great explanation why it is as slow as the cast to Nullable<int>, given that less work ought to be necessary. I suspect that ngen.exe might cause trouble here.
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Git Commit Messages: 50/72 Formatting
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Regarding the “summary” line (the 50 in your formula), the Linux kernel documentation has this to say:
For these reasons, the "summary" must be no more than 70-75
characters, and it must describe both what the patch changes, as well
as why the patch might be necessary....
What Content-Type value should I send for my XML sitemap?
...s" of application/xml registration in Section 3.2).
For text/xml:
Conformant with [RFC2046], if a text/xml entity is received with
the charset parameter omitted, MIME processors and XML processors
MUST use the default charset value of "us-ascii"[ASCII]. In cases
where the XML MIME entit...
node.js child process - difference between spawn & fork
...tion suits the need for many processes/core. You can actually decrease performance by spawning too many workers for your machine/scenario.
Ultimately you could use spawn in a way that did the above, by sending spawn a Node command. But this would be silly, because fork does some things to optimiz...
Check if at least two out of three booleans are true
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I prefer the purely binary form: return ((a^b) & c) | (a & b). It is branch-less (faster) and easy to read : (a or b is true and c is true) or (a and b are both true). Note that (a|b) and (a^b) both work with this formula.
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What are good alternatives to SQL (the language)? [closed]
... SQL in your applications. These alternatives have been implemented in the form of frontends for working with relational databases. Some examples of a frontend include:
SchemeQL and CLSQL, which are probably the most flexible, owing to their Lisp heritage, but they also look like a lot more like S...
Turn a number into star rating display using jQuery and CSS
...Tatu, thanks immensely. The existing five star plugins all seem to want a form which is fine for inputing a rating, but way overkill to change the representation of a number.
– vfilby
Apr 12 '10 at 19:22
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Difference between len() and .__len__()?
...e even more added value beyond simple sanity checks and readability. By uniformly designing all of Python to work via calls to builtins and use of operators, never through calls to magic methods, programmers are spared from the burden of remembering which case is which. (Sometimes an error slips in...
Is ServiceLocator an anti-pattern?
... a StackOverflow answer that clearly illustrates this benefit in graphical form, which not only applies when using a service locator from another library, but also when using foreign defaults in services.
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