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Choosing the default value of an Enum type without having to change values
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13 Answers
13
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How to convert a Drawable to a Bitmap?
...s accept Bitmap s only. I cannot use WallpaperManager because I'm pre 2.1.
20 Answers
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serve current directory from command line
...o remember, so I just have this in my .bashrc:
function serve {
port="${1:-3000}"
ruby -run -e httpd . -p $port
}
It serves the current directory on port 3000 by default, but you can also specify the port:
~ $ cd tmp
~/tmp $ serve # ~/tmp served on port 3000
~/tmp $ cd ../www
~/www $ se...
How to convert PascalCase to pascal_case?
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31 Answers
31
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Pointer arithmetic for void pointer in C
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+100
Final conclusion: arithmetic on a void* is illegal in both C and C++.
GCC allows it as an extension, see Arithmetic on void- and Fu...
How can I get the corresponding table header (th) from a table cell (td)?
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136
var $th = $td.closest('tbody').prev('thead').find('> tr > th:eq(' + $td.index() + ')');
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Timeout a command in bash without unnecessary delay
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153
I think this is precisely what you are asking for:
http://www.bashcookbook.com/bashinfo/sourc...
Converting an integer to a hexadecimal string in Ruby
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You can give to_s a base other than 10:
10.to_s(16) #=> "a"
Note that in ruby 2.4 FixNum and BigNum were unified in the Integer class.
If you are using an older ruby check the documentation of FixNum#to_s and BigNum#to_s
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How do I use Node.js Crypto to create a HMAC-SHA1 hash?
...const text = 'I love cupcakes'
const key = 'abcdeg'
crypto.createHmac('sha1', key)
.update(text)
.digest('hex')
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How to redirect output with subprocess in Python?
...mport shutil
with open('myfile', 'w') as outfile:
for infile in ('file1', 'file2', 'file3'):
shutil.copyfileobj(open(infile), outfile)
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