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How does `is_base_of` work?
...
It possibly has something to do with partial ordering w.r.t. overload resolution. D* is more specialized than B* in case D derives from B.
The exact details are rather complicated. You have to figure out the precedences of various overload resolution rules. Partial ord...
Single Line Nested For Loops
... the same as this nested for loop (and, as the tutorial says, note how the order of for and if are the same).
>>> combs = []
>>> for x in [1,2,3]:
... for y in [3,1,4]:
... if x != y:
... combs.append((x, y))
...
>>> combs
[(1, 3), (1, 4), (2, 3), ...
How does PHP 'foreach' actually work?
...plicated. First of all, it should be noted that in PHP "arrays" are really ordered dictionaries and they will be traversed according to this order (which matches the insertion order as long as you didn't use something like sort). This is opposed to iterating by the natural order of the keys (how lis...
SQL Server: Difference between PARTITION BY and GROUP BY
... group by modifies the entire query, like:
select customerId, count(*) as orderCount
from Orders
group by customerId
But partition by just works on a window function, like row_number:
select row_number() over (partition by customerId order by orderId)
as OrderNumberForThisCustomer
from Order...
Make XAMPP/Apache serve file outside of htdocs [closed]
...ocalhost
<Directory C:\Projects\transitCalculator\trunk>
Order allow,deny
Allow from all
</Directory>
</VirtualHost>
Open your hosts file (C:\Windows\System32\drivers\etc\hosts).
Add
127.0.0.1 transitcalculator.localhost #transitCalculator
to the end of ...
How do I reverse a C++ vector?
...se vector of vectors? I want v[0] to be swapped with v[v.size()-1] and the order of v[0][i] element remain as it is. This is similar to changing order of rows (if a vector is viewed as a Matrix). If a vector is defined as: vector<vector<int> > v; reverse(v.begin(), v.end()) doesn't rever...
Is it possible to set the stacking order of pseudo-elements below their parent element? [duplicate]
..., you have to create a new stacking context to change the default stacking order.
Positioning the pseudo-element (absolute) and assigning a z-index value other than “auto” creates the new stacking context.
#element {
position: relative; /* optional */
width: 100px;
height: ...
Node.js / Express.js - How does app.router work?
... next() or make it so no more middleware get called. That means that the order in which I place my middleware calls is important, because some middleware depends on other middleware, and some middleware near the end might not even be called.
...
Converting Dictionary to List? [duplicate]
I'm trying to convert a Python dictionary into a Python list, in order to perform some calculations.
7 Answers
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Can we call the function written in one JavaScript in another JS file?
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The answer above has an incorrect assumption that the order of inclusion of the files matter. As the alertNumber function is not called until the alertOne function is called. As long as both files are included by time alertOne is called the order of the files does not matter:
[...