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Loop through an array of strings in Bash?
...rr=("element1" "element2" "element3")
## now loop through the above array
for i in "${arr[@]}"
do
echo "$i"
# or do whatever with individual element of the array
done
# You can access them using echo "${arr[0]}", "${arr[1]}" also
Also works for multi-line array declaration
declare -a arr=...
How to make a valid Windows filename from an arbitrary string?
...
Try something like this:
string fileName = "something";
foreach (char c in System.IO.Path.GetInvalidFileNameChars())
{
fileName = fileName.Replace(c, '_');
}
Edit:
Since GetInvalidFileNameChars() will return 10 or 15 chars, it's better to use a StringBuilder instead of a sim...
Checking a Python module version at runtime
...any third-party Python modules have an attribute which holds the version information for the module (usually something like module.VERSION or module.__version__ ), however some do not.
...
php stdClass to array
...ne liner using the JSON methods if you're willing to lose a tiny bit of performance (though some have reported it being faster than iterating through the objects recursively - most likely because PHP is slow at calling functions). "But I already did this" you say. Not exactly - you used json_decode ...
How to rename with prefix/suffix?
...his with Brace Expansion. This simply expands a list of items in braces. For example:
# echo {vanilla,chocolate,strawberry}-ice-cream
vanilla-ice-cream chocolate-ice-cream strawberry-ice-cream
So you can do your rename as follows:
mv {,new.}original.filename
as this expands to:
mv original....
PDO Prepared Inserts multiple rows in single query
...=0, $separator=","){
$result = array();
if($count > 0){
for($x=0; $x<$count; $x++){
$result[] = $text;
}
}
return implode($separator, $result);
}
$pdo->beginTransaction(); // also helps speed up your inserts.
$insert_values = array();
foreach($d...
Flask-SQLalchemy update a row's information
How can I update a row's information?
5 Answers
5
...
How do you loop through currently loaded assemblies?
...g assemblies that are referenced, but not present in the current directory for some reason. This is incredibly useful when using MEF. The return list will give you both the missing assembly, and who owns it (its parent).
/// <summary>
/// Intent: Get referenced assemblies, either recursiv...
What is __init__.py for?
What is __init__.py for in a Python source directory?
12 Answers
12
...
How can I add new keys to a dictionary?
...
>>> x.update(d)
>>> print(x)
{1: 2, 3: 4, 5: 6, 7: 8}
For adding a single key, the accepted answer has less computational overhead.
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