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Git - Undo pushed commits
...t <previous label or sha1>
this will re-checkout all the updates locally (so git status will list all updated files)
then you "do your work" and re-commit your changes (Note: this step is optional)
git commit -am "blabla"
At this moment your local tree differs from the remote
git push ...
Is there a 'box-shadow-color' property?
... height: 30px;
box-shadow: 1px 1px 25px var(--box-shadow-color); /* Calling the variable */
}
.box-shadow:hover {
--box-shadow-color: #ff0000; /* Changing the value of the variable */
}
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Firefox session cookies
...ur tabs, and then you restore the browser and those tabs come back. That's called session restore. What I didn't realize is that it'll also restore all the session cookies for those pages too! It treats it like you had never closed the browser.
This makes sense in the sense that if your browser cra...
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...
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...
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...
Correct way to quit a Qt program?
... not want to exit with return code zero which means success, so you should call QCoreApplication::exit() because you can provide a non-zero returnCode which, by convention, indicates an error.
It is important to note that "if the event loop is not running, this function (QCoreApplication::exit()) d...
Explain the “setUp” and “tearDown” Python methods used in test cases
...and tearDown methods while writing test cases apart from that setUp is called immediately before calling the test method and tearDown is called immediately after it has been called?
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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
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