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In C/C++ what's the simplest way to reverse the order of bits in a byte?
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@wilhelmtell: Well, to write the script one still needs another solution, which was my point – a lookup table is simple to use but not simple to create. (Except by copying a ready-made lookup table, but then one might just as well copy any solution.) For e...
jQuery if checkbox is checked
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In CoffeeScript: if $('#my_checkbox').is ':checked'
– Dennis
Feb 21 '14 at 16:53
12
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R command for setting working directory to source file location in Rstudio
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To get the location of a script being sourced, you can use utils::getSrcDirectory or utils::getSrcFilename. So changing the working directory to that of the current file can be done with:
setwd(getSrcDirectory()[1])
This does not work in RStudio ...
Is there an equivalent of 'which' on the Windows command line?
As I sometimes have path problems, where one of my own cmd scripts is hidden (shadowed) by another program (earlier on the path), I would like to be able to find the full path to a program on the Windows command line, given just its name.
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Difference between MEAN.js and MEAN.io
I wanted to use the MEAN JavaScript Stack, but I noticed that there are two different stacks with either their own website and installation methods: mean.js and mean.io. So I came up asking myself this question: "Which one do I use?".
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Should image size be defined in the img tag height/width attributes or in CSS? [duplicate]
...t be loaded dynamically, or can change during the lifetime of the page via script) in which case using CSS only makes sense.
The bottom line is that you need to understand the trade-offs and decide which strategy makes the most sense for what you're trying to achieve.
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Redirect stdout to a file in Python?
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If you want to do the redirection within the Python script, setting sys.stdout to a file object does the trick:
import sys
sys.stdout = open('file', 'w')
print('test')
A far more common method is to use shell redirection when executing (same on Windows and Linux):
$ python...
How to find largest objects in a SQL Server database?
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I've been using this SQL script (which I got from someone, somewhere - can't reconstruct who it came from) for ages and it's helped me quite a bit understanding and determining the size of indices and tables:
SELECT
t.name AS TableName,
i.n...
How to get full path of selected file on change of using javascript, jquery-ajax
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For security reasons browsers do not allow this, i.e. JavaScript in browser has no access to the File System, however using HTML5 File API, only Firefox provides a mozFullPath property, but if you try to get the value it returns an empty string:
$('input[type=file]').change(functio...
Profiling Vim startup time
...ile.log in the current directory with all required information. To get per-script information table similar to already present per-function one, use (after opening this file in vim):
" Open profile.log file in vim first
let timings=[]
g/^SCRIPT/call add(timings, [getline('.')[...