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Why is printing “B” dramatically slower than printing “#”?
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How to declare a variable in a PostgreSQL query
...WITH () query which can work as a variable, or even tuple of variables. It allows you to return a table of temporary values.
WITH master_user AS (
SELECT
login,
registration_date
FROM users
WHERE ...
)
SELECT *
FROM users
WHERE master_login = (SELECT login
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How many classes should I put in one file? [closed]
...things up too early, because you start to realise that a totally different ordering of structure is required.
On the other hand, when any .java or .py file is getting to more than about 700 lines I start to get annoyed constantly trying to remember where "that particular bit" is.
With Python/Jytho...
How do you create different variable names while in a loop? [duplicate]
...can do this is with exec(). For example:
for k in range(5):
exec(f'cat_{k} = k*2')
>>> print(cat_0)
0
>>> print(cat_1)
2
>>> print(cat_2)
4
>>> print(cat_3)
6
>>> print(cat_4)
8
Here I am taking advantage of the handy f string formatting in Pytho...
How can I make an “are you sure” prompt in a Windows batchfile?
...y thing I would add is an additional SET AREYOUSURE=N before the prompt in order to clear the choice if you already ran the script before in that command window. Without it the default will remain the previously selected choice.
– isapir
Dec 26 '14 at 21:05
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Why does the arrow (->) operator in C exist?
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How do I check two or more conditions in one ?
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
Docker build “Could not resolve 'archive.ubuntu.com'” apt-get fails to install anything
...ame problem as me.
The nslookup command queries the DNS server 8.8.8.8 in order to turn the text address of 'google.com' into an IP address. Ironically, 8.8.8.8 is Google's public DNS server. If nslookup fails, public DNS servers like 8.8.8.8 might be blocked by your company (which I assume is for ...
Java Immutable Collections
... contains its own private data and will never change.
So, basically, in order to get an immutable collection out of a mutable one, you have to copy its elements to the new collection, and disallow all operations.
share
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Can the Android layout folder contain subfolders?
...ders? I just tried with no luck, even taking into account the declaration ordering.
– trevor-e
Mar 31 '14 at 21:22
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