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Eclipse HotKey: how to switch between tabs?
...hem an OS specific shortcut.
Regarding shortcuts on Mac OS (OSX), Matt Ball complained in Sept. 2011 to not being able to remap CTRL+Page Up/CTRL+Page Down:
It drives me nuts to not be able to flip through open tabs as I can in pretty much every other tabbed program in OS X (⌘-Left and ⌘-...
Why is the asterisk before the variable name, rather than after the type?
...ered Dec 29 '08 at 19:28
luiscuballuiscubal
22.9k77 gold badges5050 silver badges8282 bronze badges
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rails 3 validation on uniqueness on multiple attributes
...
In Rails 2, I would have written:
validates_uniqueness_of :zipcode, :scope => :recorded_at
In Rails 3:
validates :zipcode, :uniqueness => {:scope => :recorded_at}
For multiple attributes:
validates :zipcode, :uniqueness => {:scope => [:recorded_at...
TCP vs UDP on video stream
...say you are streaming a soccer match, or concert for that matter, do you really need to use UDP?
13 Answers
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What are the differences between Abstract Factory and Factory design patterns?
...le the desired object
instantiation.
The quote assumes that an object is calling its own factory method here. Therefore the only thing that could change the return value would be a subclass.
The abstract factory is an object that has multiple factory methods on it. Looking at the first half of your...
How to select the nth row in a SQL database table?
...upports the standard windowing functions:
SELECT * FROM (
SELECT
ROW_NUMBER() OVER (ORDER BY key ASC) AS rownumber,
columns
FROM tablename
) AS foo
WHERE rownumber <= n
(which I just copied from the site linked above since I never use those DBs)
Update: As of PostgreSQL 8.4 the st...
What is the difference between SIGSTOP and SIGTSTP?
...
/usr/include/x86_64-linux-gnu/bits/signum.h
#define SIGSTOP 19 /* Stop, unblockable (POSIX). */
#define SIGTSTP 20 /* Keyboard stop (POSIX). */
share
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Can I return the 'id' field after a LINQ insert?
...? there is no insertonsubmit or submitchanges??
– Bat_Programmer
Jul 4 '12 at 0:35
1
@Confused Pr...
How can I change image tintColor in iOS and WatchKit
...; ())
/// - Returns: UIImage
fileprivate func modifiedImage(_ draw: (CGContext, CGRect) -> ()) -> UIImage {
// using scale correctly preserves retina images
UIGraphicsBeginImageContextWithOptions(size, false, scale)
let context: CGContext! = UIGr...
Change name of folder when cloning from GitHub?
...s...] <repository> [<directory>], so we see that git clone repo_url my_directory should work, as the above answer correctly shows.
– Purplejacket
Sep 26 '19 at 18:46
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