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Difference between a class and a module
... How this answer has so many votes? btw that was said in better words 1mo before: stackoverflow.com/a/17027346/986862
– Andre Figueiredo
Jan 15 '19 at 18:04
add a c...
Difference between setTimeout with and without quotes and parentheses
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can you explain in some words about eval please.
– user1316123
Apr 25 '12 at 10:01
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How to determine a Python variable's type?
...In Python 2, int is usually a signed integer equal to the implementation's word width (limited by the system). It's usually implemented as a long in C. When integers get bigger than this, we usually convert them to Python longs (with unlimited precision, not to be confused with C longs).
For example...
How to make links in a TextView clickable?
...s and converts every url to a clickable link. But this won't result in the word google being linked to google.com. It would display www.google.com as link.
– Janusz
Apr 30 '10 at 6:37
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Detect If Browser Tab Has Focus
...licate" calls
window losing focus through selection of alternate app, like word
This tends to be undesirable simply because, if you have a bank page open, and it's onblur event tells it to mask the page, then if you open calculator, you can't see the page anymore!
Not triggering on page load
Use...
Can we use join for two different database tables?
...t both databases must be accessible in the same security context. In other words, if you log in with different credentials for the two databases then the above won't work. In that case you would probably have to use "Linked Servers".
– Ian Goldby
Jan 6 '16 at 1...
Throw an error in a MySQL trigger
...--if NEW update value of the attribute age = 1 and OLD value was 0
--key word OLD and NEW let you distinguish between the old and new value of an attribute
IF (NEW.state = 1 AND OLD.state = 0) THEN
signal sqlstate '-20000' set message_text = 'hey it's an error!';
END IF;
END @@...
Check if a folder exist in a directory and create them using C#
...@"C:\a\b\c\d") suffices, even if C:\a does not exist yet.)
Let me add a word of caution about your choice of directory, though: Creating a folder directly below the system partition root C:\ is frowned upon. Consider letting the user choose a folder or creating a folder in %APPDATA% or %LOCALAPPD...
Remove autolayout (constraints) in Interface Builder
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A picture tells more than 1000 words!
– Klaas
Mar 9 '14 at 22:39
Yes, the ...
Java generics - why is “extends T” allowed but not “implements T”?
...type parameter, list the type parameter's name, followed by the extends keyword, followed by its upper bound […]. Note that, in this context, extends is used in a general sense to mean either extends (as in classes) or implements (as in interfaces).
So there you have it, it's a bit confusing, an...