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How does __proto__ differ from constructor.prototype?
...hat is function Empty() {} you refer to being equal to Function.prototype, etc?, what is the code you used in chrome console?
– drodsou
Jul 28 '12 at 18:32
2
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Print current call stack from a method in Python code
... If you want to get some more verbose output (including vars etc), see this related question, and this one.
– Albert
Oct 7 '18 at 12:47
...
Spring Cache @Cacheable - not working while calling from another method of the same bean
... I the only one thinking this breaks patterns, looks like a singleton mix, etc etc?
– 2mia
Jul 30 '19 at 12:30
i used ...
Why shouldn't I use mysql_* functions in PHP?
... {
$stmt = $db->query("SELECT * FROM table");
return $stmt->fetchAll(PDO::FETCH_ASSOC);
}
//Then later
try {
data_fun($db);
}
catch(PDOException $ex) {
//Here you can handle error and show message/perform action you want.
}
Also, you can handle by or die() or we can say like...
How to replace multiple strings in a file using PowerShell
...
Assuming you can only have one 'something1' or 'something2', etc. per line, you can use a lookup table:
$lookupTable = @{
'something1' = 'something1aa'
'something2' = 'something2bb'
'something3' = 'something3cc'
'something4' = 'something4dd'
'something5' = 'somethi...
How do I write good/correct package __init__.py files
...-- if "importing the package" means getting all sort of classes, functions etc defined directly as part of the package, then I would lexically copy the contents of blah.py into the package's __init__.py instead and remove blah.py (the multiplication of source files does no good here).
If you do ins...
How do I replace whitespaces with underscore?
...L-hostile characters like question marks, apostrophes, exclamation points, etc.
Also note that the general consensus among SEO experts is that dashes are preferred to underscores in URLs.
import re
def urlify(s):
# Remove all non-word characters (everything except numbers and letters)
...
If Python is interpreted, what are .pyc files?
...eral places, thumbed through looking for given chapter-and-verse pointers, etc, etc, and a good hardcover binding can make a given copy last longer under such use. However, these are mundane (practical) issues that cannot be used to determine whether a given actual book object is a copy of the Bibl...
How do I use valgrind to find memory leaks?
...all Valgrind on your system.
sudo apt install valgrind # Ubuntu, Debian, etc.
sudo yum install valgrind # RHEL, CentOS, Fedora, etc.
Valgrind is readily usable for C/C++ code, but can even be used for other
languages when configured properly (see this for Python).
To run Valgrind, pass the ex...
how to change any data type into a string in python
...yvariable) - it often returns information about class type, memory address etc. It's more useful for debugging. Use str(myvariable) for conversion to string and unicode(variable) for conversion to unicode.
– Abgan
Jul 8 '10 at 14:29
...