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TypeError: 'NoneType' object is not iterable in Python
...rrect, But the common scenario author intended here is totally to skip the for loop instead of raising an exception. Python's design is flawed here. When None is treated as an iterable it must return empty list at least. This exception never helped anyone in real life other than making us insert f...
How to add a new method to a php object on the fly?
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You can harness __call for this:
class Foo
{
public function __call($method, $args)
{
if (isset($this->$method)) {
$func = $this->$method;
return call_user_func_array($func, $args);
}
}
}
...
Min/Max of dates in an array?
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To number convertion applied not for string '2011/06/25', but for new Date('2011/06/25'). Number(new Date('2011/06/25'))===1308949200000. Code is tested in Chrome, IE, FF
– Andrew D.
Aug 22 '11 at 6:07
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PHP check whether property exists in object or class
...wer since it answers the explicit answer very precise. isset is not useful for testing existence of a property in an object.
– Christopher Bonitz
Feb 6 '17 at 7:53
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When should I use the Visitor Design Pattern? [closed]
...but I've got to admit, I just don't get it. I read the wikipedia article for the pattern and I understand its mechanics but I'm still confused as to when I'd use it.
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What is Java String interning?
... the Permanent Generation, which is an area of the JVM that is reserved
for non-user objects, like Classes, Methods and other internal JVM
objects. The size of this area is limited, and is usually much smaller
than the heap. Calling intern() on a String has the effect of moving
it out from ...
.NET / C# - Convert char[] to string
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@Skod: Seeing that it's impossible for a "new" expression to return a value other than an object instance, that should not come as a surprise to anyone.
– Matti Virkkunen
Jan 12 '18 at 16:53
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Differences between “BEGIN RSA PRIVATE KEY” and “BEGIN PRIVATE KEY”
...sl.org/kb/cryptography/asn1-key-structures-in-der-and-pem (search the page for "BEGIN RSA PRIVATE KEY") (archive link for posterity, just in case).
BEGIN RSA PRIVATE KEY is PKCS#1 and is just an RSA key. It is essentially just the key object from PKCS#8, but without the version or algorithm identif...
Python date string to date object
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I am trying a similar process except for my input string do not have the year, so it looks like '2405'. By default, the year is taken as 1900. The issue occurs when parsing Feb date like '2902'. I get this error ValueError: day is out of range for month. Not sur...
SQL- Ignore case while searching for a string
...PriceOrderShippedOutbound
In SQL I need to write a query which searches for a string in a table. While searching for a string it should ignore case. For the below mentioned SQL query
...