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How to use querySelectorAll only for elements that have a specific attribute set?
... @blackHawk The syntax uses CSS Selectors. As specified by MDN it "is a string containing one or more CSS selectors separated by commas". You can read about CSS Selectors here.
– martieva
Oct 21 '16 at 14:52
...
SELECT DISTINCT on one column
...l shown), this is the correct query:
declare @TestData table (ID int, sku char(6), product varchar(15))
insert into @TestData values (1 , 'FOO-23' ,'Orange')
insert into @TestData values (2 , 'BAR-23' ,'Orange')
insert into @TestData values (3 , 'FOO-24' ,'Apple')
insert into @Tes...
How to play with Control.Monad.Writer in haskell?
...sk for its type:
ghci> :t logNumber
logNumber :: (Show a, MonadWriter [String] m) => a -> m a
Which tells me that the inferred type is not a function that returns a particular writer, but rather anything that implements the MonadWriter type class. I can now use it:
ghci> let multWith...
WAMP/XAMPP is responding very slow over localhost
... do this in Control Panel\All Control Panel Items\Power Options
Disable IPv6
The credits of this particular task go to Jef where he pointed this out in his blog post. From the Windows 8 desktop, press the Windows Key and the R key at the same time
Type regedit in the Run dialog box and click ...
how can I see what ports mongo is listening on from mongo shell?
...
Try this:
db.runCommand({whatsmyuri : 1})
It will display both the IP address and the port number.
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Creating a comma separated list from IList or IEnumerable
What is the cleanest way to create a comma-separated list of string values from an IList<string> or IEnumerable<string> ?
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How to initialize private static members in C++?
... above if the static member variable is of const int type (e.g. int, bool, char). You can then declare and initialize the member variable directly inside the class declaration in the header file:
class foo
{
private:
static int const i = 42;
};
...
Short form for Java if statement
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Won't String cityName = city.getName(); throw a NullPointerException if city == null? I'd therefore say your middle solution is definitely the best (PS and I approve of the 'unnecessary' parentheses! People need to remember that 9...
What is the difference between DAO and Repository patterns?
...t exposes methods like
Collection<Permission> findPermissionsForUser(String userId)
User findUser(String userId)
Collection<User> findUsersForPermission(Permission permission)
All those are related to User (and security) and can be specified under then same DAO. This is not the case for...
C dynamically growing array
...zeof operator, the _Alignof operator, or the unary & operator, or is a string literal used to initialize an array, an expression that has type ''array of type'' is converted to an expression with type ''pointer to type'' that points to the initial element of the array object and is not an lvalue...