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Why would an Enum implement an Interface?
...plexOperators implements Operator {
// can't think of an example right now :-/
}
Now to get a list of both the Simple + Complex Operators:
List<Operator> operators = new ArrayList<Operator>();
operators.addAll(Arrays.asList(SimpleOperators.values()));
operators.addAll(Arrays.asLi...
Format JavaScript date as yyyy-mm-dd
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now.toISOString().substring(0,10); This is a cleaner alternative, since it reminds you that YYYY-MM-DD are the first ten characters of the complete iso format
– Gutimore
Aug 26 '18 at 2...
what is the difference between GROUP BY and ORDER BY in sql
...-+-----------+----------+
GROUP BY: arrange identical data into groups.
Now, CUSTOMERS table has the following records with duplicate names:
+----+----------+-----+-----------+----------+
| ID | NAME | AGE | ADDRESS | SALARY |
+----+----------+-----+-----------+----------+
| 1 | Ramesh ...
Responsively change div size keeping aspect ratio [duplicate]
...e put together a demo here: http://codepen.io/tcmulder/pen/iqnDr
EDIT:
Now, bumming off of Isaac's idea, it's easier in modern browsers to simply use vw units to force aspect ratio (although I wouldn't also use vh as he does or the aspect ratio will change based on window height).
So, this simp...
Vim users, where do you rest your right hand? [closed]
... avoid overwriting base Vim features: Toss whatever used to be on ; to the now-empty h button
As a cute bonus, the "l" key now stands for "left" ;)
noremap l h
noremap ; l
noremap h ;
The previous "runners-up", who both use "left-down-up-right" layout:
Choice 1: "hjkl"
@al...
When would you use the different git merge strategies?
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@JakubNarębski by now you can also choose theirs, which is according to the manual " the opposite of ours. Theirs is neither chosen automatically for you. May you can slightly update your anwser, adding the theirs option
–...
How to trick an application into thinking its stdout is a terminal, not a pipe
... keep ownership of the keyboard, we want this to go to less. So I use this now and it works well: 0<&- script -qfc "git status" /dev/null | less -R . Those first few characters close stdin for this one commmand.
– Aaron McDaid
Nov 26 '14 at 13:54
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What is a WeakHashMap and when to use it? [duplicate]
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Above link by Ivaylo is dead now
– Phil Hamer
Aug 23 '16 at 20:14
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show 3 more comments
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#pragma mark in Swift?
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+1 for recommending extensions. Even with MARK working now, using extensions to group some kinds of semantically related code (especially protocol implementations) can still be useful. IMHO it reads a lot better to have your declaration of protocol conformance right next to the m...
C++ “virtual” keyword for functions in derived classes. Is it necessary?
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@Rasmi, the new portability guide is here, but now it recommends to use the override keyword.
– Sergei Tachenov
Sep 14 '16 at 18:36
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