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Find and extract a number from a string
... NOTE: If the string contains multiple numbers, this answer will run them all together into a single number. E.g. "a12bcd345" results in "12345". (Which may be desirable or not, depending on the goal.) This is different than the top-voted Regex solution, which would return "12" for the case above. ...
Download and open PDF file using Ajax
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Yes, it does work on all modern browsers. If you see a blank pdf, try running the ajax url in a new tab. If you get a blank screen there as well, might be a problem with the pdf itself. If you do see a pdf file there and not in the downloaded fil...
How do I kill background processes / jobs when my shell script exits?
...
but can also be used to execute something if the shell exits:
trap "killall background" EXIT
It's a builtin, so help trap will give you information (works with bash). If you only want to kill background jobs, you can do
trap 'kill $(jobs -p)' EXIT
Watch out to use single ', to prevent the sh...
Control the dashed border stroke length and distance between strokes
...th border-image
Compatibility: It offers great browser support (IE 11 and all modern browsers). A normal border can be set as a fallback for older browsers.
Let's create these
These borders will display exactly the same cross-browser!
Step 1 - Create a suitable image
This example is 15 pixel...
Passing a method as a parameter in Ruby
...ightedknn(data, vec1, k = 5, weightf = gaussian)
...
weight = weightf.call(dist)
...
end
Just note that you can't set a default argument in a block declaration like that. So you need to use a splat and setup the default in the proc code itself.
Or, depending on your scope of all this, it...
Why is NaN not equal to NaN? [duplicate]
...n this question pops up in searches.
NaN is designed to propagate through all calculations, infecting them like a virus, so if somewhere in your deep, complex calculations you hit upon a NaN, you don't bubble out a seemingly sensible answer. Otherwise by identity NaN/NaN should equal 1, along with ...
'console' is undefined error for Internet Explorer
...onsole = ...
An undefined variable cannot be referred directly. However, all global variables are attributes of the same name of the global context (window in case of browsers), and accessing an undefined attribute is fine.
Or use if (typeof console === 'undefined') console = ... if you want to a...
What is the difference between Unidirectional and Bidirectional JPA and Hibernate associations?
...s, so that you can access the other side without explicit queries. Also it allows you to apply cascading options to both directions.
Note that navigational access is not always good, especially for "one-to-very-many" and "many-to-very-many" relationships. Imagine a Group that contains thousands of ...
Mockito: Trying to spy on method is calling the original method
... = new LinkedList();
List spy = spy(list);
// Impossible: real method is called so spy.get(0) throws IndexOutOfBoundsException (the list is yet empty)
when(spy.get(0)).thenReturn("foo");
// You have to use doReturn() for stubbing
doReturn("foo").when(spy).get(0);
In your case it goes something l...
Removing the remembered login and password list in SQL Server Management Studio
...e SSMS 2012 solution... see this answer:
Remove cached login 2012
Essentially, in 2012 you can delete the server from the server list dropdown which clears all cached logins for that server.
Works also in v17 (build 14.x).
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