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Save PL/pgSQL output from PostgreSQL to a CSV file
...your local PC. It also needs to be run as a Postgres "superuser" (normally called "root") because Postgres can't stop it doing nasty things with that machine's local filesystem.
That doesn't actually mean you have to be connected as a superuser (automating that would be a security risk of a differe...
How do you check if a selector matches something in jQuery? [duplicate]
...y poor code design if you are doing math on the return value of a function called exists... IMHO :) Actually adding a one-liner extension, like exists() that is 2 characters longer than what it replaces is silly to begin with for JS! :)
– Gone Coding
Sep 15 '15...
AngularJS : The correct way of binding to a service properties
... find myself having to modify markup and controller logic when changes are called for, anyway. So the extra effort of writing the API negates it's advantage.
-1 Furthermore, this approach isn't very DRY.
-1 If you want to bind the data to ng-model your code become even less DRY as you have to re-pac...
What's invokedynamic and how do I use it?
...It is a new JVM instruction which allows a compiler to generate code which calls methods with a looser specification than was previously possible -- if you know what "duck typing" is, invokedynamic basically allows for duck typing. There's not too much you as a Java programmer can do with it; if you...
What is WCF RIA services?
...
RIA services is a server-side technology that automatically generates client-side (Silverlight) objects that take care of the communication with the server for you and provide client-side validation.
The main object inside a RIA service is a DomainService, usually a LinqToEntit...
Is there a way to hide the scroll indicators in a UIScrollView?
...
As of iOS 11, this should be called in viewWillAppear, it doesn't work if called in viewDidLoad
– melvinto
Mar 8 '18 at 17:38
ad...
What is the difference between “INNER JOIN” and “OUTER JOIN”?
...Colour FROM A LEFT OUTER JOIN B ON A.Colour = B.Colour
Outer Joins are logically evaluated in the same way as inner joins except that if a row from the left table (for a left join) does not join with any rows from the right hand table at all it is preserved in the result with NULL values for the rig...
How do you represent a graph in Haskell?
...n haskell using algebraic data types. But how would you go about typographically representing a graph? It seems that you need to have pointers. I'm guessing you could have something like
...
CoffeeScript, When to use fat arrow (=>) over arrow (->) and vice versa
...or the fat-arrow in defining methods is when you want to use a method as a callback and that method references instance fields:
class A
constructor: (@msg) ->
thin: -> alert @msg
fat: => alert @msg
x = new A("yo")
x.thin() #alerts "yo"
x.fat() #alerts "yo"
fn = (callback) -> c...
Stopping an Android app from console
...mmediately upon running a shell. That can probably be refined slightly to call su beforehand.
Otherwise, you can do (manually, or I suppose scripted):
pc $ adb -d shell
android $ su
android # ps
android # kill <process id from ps output>
...