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String concatenation: concat() vs “+” operator
..., with more strings the StringBuilder method wins, at least in terms of performance.
The source code of String and StringBuilder (and its package-private base class) is available in src.zip of the Sun JDK. You can see that you are building up a char array (resizing as necessary) and then throwing i...
What is opinionated software?
...with altCognito. .NET encourages the developer to mix Model and View in WinForms apps by making it brain-dead easy to put business logic in methods generated by the button click event, for example. In this way, Microsoft indirectly encourages short-sighted developers to lock their code in to their f...
Convert a String In C++ To Upper Case
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This appears to perform extremely badly with g++ 5.2 -O3, and Boost 1.58 (like 30x worse than calling glibc's toupper in a loop.) There's a dynamic_cast of the locale that doesn't get hoisted out of the per-char loop. See my answer. On the p...
What is the most efficient Java Collections library? [closed]
...tions in the JDK.
Personally (and I'm biased) I love Guava (including the former Google Java Collections project). It makes various tasks (including collections) a lot easier, in a way which is at least reasonably efficient. Given that collection operations rarely form a bottleneck in my code (in m...
Do python projects need a MANIFEST.in, and what should be in it?
...w what is and [more importantly] is not included in different distribution formats. I have a public project that I only distribute via source distribution because I include a boto.sample.cfg file (which contains a fake AWS IAM credential) outside of the package (at the root) and the binary distribut...
CSS selector for a checked radio button's label
...t gets too complicated really quick. I want to use the browser's built in form+css functionality because it will work every time.
– Stephen
Sep 16 '09 at 9:20
4
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Forced naming of parameters in Python
...ers would only be semi-enforced.
Otherwise, calls would need to be of the form:
info(arg1, arg2, arg3, spacing=11, collapse=2)
A call
info(arg1, arg2, arg3, 11, 2)
would assign value 11 to parameter _p and an exception risen by the function's first instruction.
Characteristics:
Parameters ...
Why do you not use C for your web apps?
...dard library of functionality as .NET (and the other major web-centric platforms) has. So you may have to either buy components, or perform interop, or roll your own functionality which comes "for free" with a more, shall we say "web-centric" language like PHP or C# or Ruby or whatever. That means...
Design for Facebook authentication in an iOS app that also accesses a secured web service
...d just throw emails at it until I get a hit. There always needs to be some form of verification
– Chris
Jul 28 '14 at 11:37
5
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Global and local variables in R
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