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What is the EAFP principle in Python?
What is meant by "using the EAFP principle" in Python? Could you provide any examples?
3 Answers
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Is there a difference between foo(void) and foo() in C++ or C?
Consider these two function definitions:
4 Answers
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Practical use of `stackalloc` keyword
...m aware of what is does, but the only time it shows up in my code is by accident, because Intellisense suggests it when I start typing static , for example.
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Difference: std::runtime_error vs std::exception()
...proach, offered to you by the authors of the language. As you see, they decided to split all exception types into "runtime errors" and "logic errors" and let you proceed from there with your own exception types. There are, of course, alternative ways to structure that hierarchy, which might be more ...
Python strptime() and timezones?
...umentation now also states the following:
When the %z directive is provided to the strptime() method, an aware datetime object will be produced. The tzinfo of the result will be set to a timezone instance.
Note that this doesn't work with %Z, so the case is important. See the following example...
Open a URL in a new tab (and not a new window)
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@AliHaideri The Javascript has nothing to do with how the new tab/window is opened. It's all determined by your browser's settings. Using window.open tells the browser to open something new, then the browser opens up what is chosen...
What are the git concepts of HEAD, master, origin?
...ain branch". Most shops have everyone pushing to master, and master is considered the definitive view of the repo. But it's also common for release branches to be made off of master for releasing. Your local repo has its own master branch, that almost always follows the master of a remote repo.
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Small Haskell program compiled with GHC into huge binary
...e dynamically linked! All the Haskell libraries are copied in verbatim.
Aside: since this is a graphics-intensive app, I'd definitely compile with ghc -O2
There's two things you can do.
Stripping symbols
An easy solution: strip the binary:
$ strip A
$ du -hs A
5.8M A
Strip discards symbols...
What is the difference between Non-Repeatable Read and Phantom Read?
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and
A phantom read occurs when, in the course of a transaction, two identical queries are executed, and the collection of rows returned by the second query is different from the first.
Simple examples:
User A runs the same query twice.
In between, User B runs a transaction and commits.
N...
JSON: why are forward slashes escaped?
... when embedding JSON in a <script> tag, which doesn't allow </ inside strings, like Seb points out.
Some of Microsoft's ASP.NET Ajax/JSON API's use this loophole to add extra information, e.g., a datetime will be sent as "\/Date(milliseconds)\/". (Yuck)
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