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Dynamic constant assignment
...
In Ruby, any variable whose name starts with a capital letter is a constant and you can only assign to it once. Choose one of these alternatives:
class MyClass
MYCONSTANT = "blah"
def mymethod
MYCONSTANT
end
end
class MyClass
def mymethod
...
What is the difference between instanceof and Class.isAssignableFrom(…)?
...; i < 100; ++i)
execute();
// Time it
int count = 100000;
final long start = System.nanoTime();
for(int i=0; i<count; i++){
execute();
}
final long elapsed = System.nanoTime() - start;
Thanks to the JIT, the code is optimized at some point and we get:
instanceof: 6ms
isInstance: 12m...
What is the difference between Directory.EnumerateFiles vs Directory.GetFiles?
...d GetFiles methods differ as follows: When you use EnumerateFiles, you can start enumerating the collection of names before the whole collection is returned; when you use GetFiles, you must wait for the whole array of names to be returned before you can access the array. Therefore, when you are work...
What is a “slug” in Django?
...h molds, since after many prints they became worn out. Apprentices like me started their career there, and went all the way to the top (not anymore).
Typographs had to compose the text of an article in a backward manner with lead characters stacked in a wise. So at printing time the letters would b...
Assembly code vs Machine code vs Object code?
...l display a number of lines in different colors fetched from a table which starts at address $1437. On some tools, typing in an address, along with the rightmost part of the line above, would store to memory the values shown in the middle column, and start the next line with the following address. ...
MySQL Fire Trigger for both Insert and Update
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@Zxaos: I'd suggest starting with dev.mysql.com/doc/refman/5.1/en/create-procedure.html (which includes some examples) and asking your own question(s) if needed.
– derobert
Jul 1 '11 at 5:21
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How do I return multiple values from a function? [closed]
... to work with tuples. When that gets too hard to manage (and not before) I start grouping things into logical structures, however I think your suggested use of dictionaries and ReturnValue objects is wrong (or too simplistic).
Returning a dictionary with keys "y0", "y1", "y2", etc. doesn't offer an...
How to convert `git:` urls to `http:` urls
...onfig [--global] url.<base>.insteadOf <other_url>
Any URL that starts with this value will be rewritten to start, instead, with <base>. When more than one insteadOf strings match a given URL, the longest match is used.
...
Nesting await in Parallel.ForEach
...benefit when compared to your code (if it worked) is that the writing will start as soon as a single item is finished, and not wait until all of the processing is finished.
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Capture key press (or keydown) event on DIV element
... //....your actions for the keys .....
}
});
To set the focus on start:
$(function() {
$('#mydiv').focus();
});
To remove - if you don't like it - the div focus border, set outline: none in the CSS.
See the table of keycodes for more keyCode possibilities.
All of the code assuming ...