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Best practices/performance: mixing StringBuilder.append with String.concat
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Use + operator is best practice, it is also simple and readable.
The Java language provides special support for the string
concatenation operator ( + ), and for conversion of other objects to
strings. String concatenation is implemented through the
StringBuilder(or Stri...
Is it possible to program iPhone in C++
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Short answer, yes, sort of. You can use Objective-C++, which you can read about at Apple Developer Connection.
If you know C++ already, learning Objective-C would be pretty simple, if you decided to give that a try. More info on that topic is at the ADC as well.
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Submitting a form by pressing enter without a submit button
... there's just one thing about visibility: hidden: as you can read in w3schools, visibity:none still affects the layout. If you want to avoid this whitespace, the solution with absolute positioning seems to be better for me.
– loybert
Sep 28 '12 at...
How do I find which rpm package supplies a file I'm looking for?
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To know the package owning (or providing) an already installed file:
rpm -qf myfilename
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Converting Dictionary to List? [duplicate]
... very much indeed. I just find the documentation for Python rather hard to read!
– Federer
Nov 5 '09 at 9:44
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How to list the size of each file and directory and sort by descending size in Bash?
...n following command:
du -a --max-depth=1 | sort -n
OR add -h for human readable sizes and -r to print bigger directories/files first.
du -a -h --max-depth=1 | sort -hr
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node.js shell command execution
... immediately regardless of whether some, all, or none of the data has been read off of stdout. As such, when you run
console.log(foo.stdout);
you get whatever happens to be stored in foo.stdout at the moment, and there's no guarantee what that will be because your child process might still be run...
What's the shortest code to cause a stack overflow? [closed]
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Read this line, and do what it says twice.
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edited Sep 15 '08 at 16:16
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How do I move to end of line in Vim?
...: A bit of a late reply, but if you're still wondering, (or if anyone else reading this is) gw and gq are commands that reformat text. (see :h gw and :h gq) What probably happened was you did gw{motion} and changed some text so that the screen lines corresponded to the actual lines.
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How do I execute a program from Python? os.system fails due to spaces in path
...t was it! I'd go for subprocess, but sometimes os.system and os.popen(...).read() are just faster to type. BTW, you don't need to escape double quotes inside single, i.e. '""C:\\Temp\\a b c\\Notepad.exe""' will do.
– Tomasz Gandor
Sep 28 '16 at 14:23
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