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Java - Including variables within strings?
... I know this is a matter of opinion, but I don't see how format is more attractive than a simple String concatenation expression. Where format comes into its own is when you need to do padding, number formatting, etcetera.
– Stephen C
Mar 10 '12 at 4:1...
Core Data: Quickest way to delete all instances of an entity
...tor executeRequest:delete withContext:myContext error:&deleteError];
More information about batch deletions can be found in the "What's New in Core Data" session from WWDC 2015 (starting at ~14:10).
iOS 8 and earlier:
Fetch 'em all and delete 'em all:
NSFetchRequest *allCars = [[NSFetchRequ...
How can I create download link in HTML?
...lking about. (It is now safe to use the approach described TIIUNDER's much more recent answer below, though. It should get the accept mark.)
– Pekka
Dec 25 '14 at 23:51
...
Creating a singleton in Python
...the way you customize the creation of a class. Using a metaclass gives you more control in case you need to customize the singleton class definitions in other ways.
Your singletons won't need multiple inheritance (because the metaclass is not a base class), but for subclasses of the created class th...
How to perform Callbacks in Objective-C
... +1 Good thorough answer. Icing on the cake would be a link to more in-depth Apple documentation on delegates. :-)
– Quinn Taylor
Jun 19 '09 at 1:44
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How do you delete all text above a certain line
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Mongoose's find method with $or condition does not work properly
...ram' as ObjectId type. To avoid exception,
// the 'param' must consist of more than 12 characters.
User.find( { $or:[ {'_id':objId}, {'name':param}, {'nickname':param} ]},
function(err,docs){
if(!err) res.send(docs);
});
...
Is there any sed like utility for cmd.exe? [closed]
...s:
get-content somefile.txt | %{$_ -replace "expression","replace"}
For more detail see Zain Naboulsis blog entry.
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Filename too long in Git for Windows
...s://docs.microsoft.com/en-us/windows/desktop/fileio/naming-a-file has some more information:
Starting in Windows 10, version 1607, MAX_PATH limitations have been
removed from common Win32 file and directory functions. However, you
must opt-in to the new behavior.
A registry key allows y...
How to generate a Dockerfile from an image?
...ository/docker/alpine/dfimage
below is the old answer, it doesn't work any more.
$ docker pull centurylink/dockerfile-from-image
$ alias dfimage="docker run -v /var/run/docker.sock:/var/run/docker.sock --rm centurylink/dockerfile-from-image"
$ dfimage --help
Usage: dockerfile-from-image.rb [options]...