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Understanding Python super() with __init__() methods [duplicate]
..."UserDependency init'ed")
super(UserDependency, self).__init__()
Now remember, ChildB uses super, ChildA does not:
class UserA(ChildA, UserDependency):
def __init__(self):
print("UserA init'ed")
super(UserA, self).__init__()
class UserB(ChildB, UserDependency):
de...
parseInt(null, 24) === 23… wait, what?
...isn't a base-24 numeric string in entirety, but "n" is: it's decimal 23.
Now, parsing stops after the decimal 23 is pulled out, because "u" isn't found in the base-24 system:
If S contains any character that is
not a radix-R digit, then let Z be the
substring of S consisting of all
chara...
Can I record/play macros in Visual Studio 2012/2013/2015/2017/2019?
...ncluding macro record/replay, macro projects and the Macros IDE. While we know that macros have been valuable for those who use them, unfortunately our usage data shows that less than 1% of Visual Studio developers take advantage of this feature. Therefore, we’ve found ourselves investing more dee...
String literals and escape characters in postgresql
... I was referring to strings in SQL statements, while you are now using a psql command. Do you get the same error using the COPY command instead of \copy?
– eppesuig
Nov 17 '11 at 12:14
...
How can I display a list view in an Android Alert Dialog?
...
This is great, now add icons ;)
– AaA
Aug 14 '17 at 10:49
1
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Node.js Best Practice Exception Handling
...
Update: Joyent now has their own guide. The following information is more of a summary:
Safely "throwing" errors
Ideally we'd like to avoid uncaught errors as much as possible, as such, instead of literally throwing the error, we can inst...
call a static method inside a class?
...o the most common way of calling a static method:
self::staticMethod();
Now, before you start thinking that the :: is the static call operator, let me give you another example:
self::bar();
This will print baz = 1, which means that $this->bar() and self::bar() do exactly the same thing; tha...
What is the difference between `sorted(list)` vs `list.sort()`?
...ontent is still the same.
nums
[-3, 1, 4, 5, 7, 8, 9, 14]
nums.sort()
Now the original nums list is changed and looking at nums we see our original list has changed and is now sorted.
nums
[-3, 1, 2, 4, 5, 7, 8, 14]
...
Abstract class in Java
...ethod that implements abstractMethod()! So there's no way for the JVM to know what it's supposed to do when it gets something like new ImplementingClass().abstractMethod().
Here's a correct ImplementingClass.
public class ImplementingClass extends AbstractClass
{
public void abstractMethod() ...
Are Stored Procedures more efficient, in general, than inline statements on modern RDBMS's? [duplica
...optimizers have limits and cut-offs for performance reasons). It is not unknown for very complicated SQL to have distinct, measurable (I've seen a complicated query take 10+ seconds just to generate a plan, before we tweaked the DBMS) latencies due to the optimizer trying to figure out the "near bes...