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Difference between fold and reduce?
...old left or right visually depicted in this wiki(en.wikipedia.org/wiki/Fold_%28higher-order_function). With an identity construct, the other two 'fundamental' FP operators (filter and fmap) are also implementable with an existing `fold' first-class language construct (they're all isomorphic construc...
Generate random numbers with a given (numerical) distribution
...
scipy.stats.rv_discrete might be what you want. You can supply your probabilities via the values parameter. You can then use the rvs() method of the distribution object to generate random numbers.
As pointed out by Eugene Pakhomov in th...
How to set the thumbnail image on HTML5 video?
...reload="metadata">
<source src="https://www.w3schools.com/html/mov_bbb.mp4#t=0.5" type="video/mp4">
</video>
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Detect Android phone via Javascript / jQuery
...w.location = 'http://android.davidwalsh.name';
}
PHP:
$ua = strtolower($_SERVER['HTTP_USER_AGENT']);
if(stripos($ua,'android') !== false) { // && stripos($ua,'mobile') !== false) {
header('Location: http://android.davidwalsh.name');
exit();
}
Edit : As pointed out in some comments...
Setting the correct encoding when piping stdout in Python
...o it can be set when output is not a terminal. There is even a standard LC_CTYPE environment to specify it. It is a but in python that it doesn't respect this.
– Rasmus Kaj
May 31 '10 at 15:34
...
Check if URL has certain string with PHP
...URL and the rest check if it contains the word "car".
$url = 'http://' . $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'];
if (strpos($url,'car') !== false) {
echo 'Car exists.';
} else {
echo 'No cars.';
}
shar...
NSInvocation for Dummies?
...y Ryan's note, index 0 is reserved for "self" and index 1 is reserved for "_cmd" (see the link e.James posted for more detail). So your first argument gets placed at index 2, second argument at index 3, etc...
– Dave
Jul 11 '10 at 20:47
...
Apply .gitignore on an existing repository already tracking large number of files
.... For example, mine looks like this:
```
OS junk files
[Tt]humbs.db
*.DS_Store
#Visual Studio files
*.[Oo]bj
*.user
*.aps
*.pch
*.vspscc
*.vssscc
*_i.c
*_p.c
*.ncb
*.suo
*.tlb
*.tlh
*.bak
*.[Cc]ache
*.ilk
*.log
*.lib
*.sbr
*.sdf
*.pyc
*.xml
ipch/
obj/
[Bb]in
[Dd]ebug*/
[Rr]elease*/
Ankh.NoLoad
...
How do I iterate over a JSON structure? [duplicate]
...
Similarly, lodash offers _.forEach (alias _.each for underscore compatibility) to accomplish the same.
– Ville
Oct 25 '14 at 5:29
...
How To Change DataType of a DataColumn in a DataTable?
...newType)
{
using (DataColumn dc = new DataColumn(columnName + "_new", newType))
{
// Add the new column which has the new type, and move it to the ordinal of the old column
int ordinal = dt.Columns[columnName].Ordinal;
dt.Columns.Add(dc);
...