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Capture Signature using HTML5 and iPad
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Here's another canvas based version with variable width (based on drawing velocity) curves: demo at http://szimek.github.io/signature_pad and code at https://github.com/szimek/signature_pad.
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PHP Regex to get youtube video ID?
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Based on bokor's comment on Anthony's answer:
preg_match("/^(?:http(?:s)?:\/\/)?(?:www\.)?(?:m\.)?(?:youtu\.be\/|youtube\.com\/(?:(?:watch)?\?(?:.*&)?v(?:i)?=|(?:embed|v|vi|user)\/))([^\?&\"'>]+)/", $url, $matches...
How to calculate the number of days between two dates? [duplicate]
...TC(StartDate.getFullYear(), StartDate.getMonth(), StartDate.getDate())) / 86400000;
as a function:
function DaysBetween(StartDate, EndDate) {
// The number of milliseconds in all UTC days (no DST)
const oneDay = 1000 * 60 * 60 * 24;
// A day in UTC always lasts 24 hours (unlike in other ti...
How to install XNA game studio on Visual Studio 2012?
...nd prompt 'as administrator' and executing the following (may vary if not x64 computer with defaults paths) :
xcopy /e "C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\Extensions\Microsoft\XNA Game Studio 4.0" "C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\Extensio...
I can't install python-ldap
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The python-ldap is based on OpenLDAP, so you need to have the development files (headers) in order to compile the Python module. If you're on Ubuntu, the package is called libldap2-dev.
Debian/Ubuntu:
sudo apt-get install libsasl2-dev python-...
Seeding the random number generator in Javascript
...ery different results even when two strings are similar. Here's an example based on MurmurHash3's mixing function:
function xmur3(str) {
for(var i = 0, h = 1779033703 ^ str.length; i < str.length; i++)
h = Math.imul(h ^ str.charCodeAt(i), 3432918353),
h = h << 13 | h &g...
How to update Ruby to 1.9.x on Mac?
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NilsNils
5,08644 gold badges3030 silver badges3636 bronze badges
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How do you compare structs for equality in C?
...floating point types with redundant encodings. (Intel long double, decimal64, etc.) These issues make no difference is calloc() used or not or padding.
– chux - Reinstate Monica
Apr 14 '15 at 15:02
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Detect if a NumPy array contains at least one non-numeric value?
... As an extra complication the input could be a single float or numpy.float64 or even something oddball like a zero-dimensional array.
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Bash empty array expansion with `set -u`
....4.
$ bash --version | head -n 1
GNU bash, version 4.4.19(1)-release (x86_64-pc-linux-gnu)
$ set -u
$ arr=()
$ echo "foo: '${arr[@]}'"
foo: ''
There is a conditional you can use inline to achieve what you want in older versions: Use ${arr[@]+"${arr[@]}"} instead of "${arr[@]}".
$ function a...