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:after vs. ::after
...at the issue of support for (at least this) CSS3 tag is almost a non-issue by now.
– DRosenfeld
Feb 25 '16 at 12:06
1
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Calculate RSA key fingerprint
...For example:
ssh-keygen -lf ~/.ssh/id_dsa.pub
1024 SHA256:19n6fkdz0qqmowiBy6XEaA87EuG/jgWUr44ZSBhJl6Y (DSA)
If you need to compare it against an old fingerprint you also need to specify to use the MD5 fingerprint hashing function.
ssh-keygen -E md5 -lf ~/.ssh/id_dsa.pub
2048 MD5:4d:5b:97:19:8c:...
Nginx not picking up site in sites-enabled?
...t certain versions of nginx allows including/linking to other files purely by having a single line with the relative path to the included file. (At least that's what it looked like in some "inherited" config files I've been using, until a new nginx version broke them.)
In sites-enabled/default (old...
How can I open Java .class files in a human-readable way?
...
If you don't mind reading bytecode, javap should work fine. It's part of the standard JDK installation.
Usage: javap <options> <classes>...
where options include:
-c Disassemble the code
-classpath <pathli...
MySQL Removing Some Foreign keys
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As explained here, seems the foreign key constraint has to be dropped by constraint name and not the index name. The syntax is:
alter table footable drop foreign key fooconstraint
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imp...
Interface or an Abstract Class: which one to use?
...approach that's common when you're uncertain which way to go (as mentioned by cletus below) is to create an interface, and then have your abstract class implement that interface.
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improve t...
Enable zooming/pinch on UIWebView
...superb answer. It made even those pages zoom which were not getting zoomed by just setting the "Scales page to fit" property.
– GKK
Nov 2 '16 at 9:41
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Mocking a class: Mock() or patch()?
.... Once you patch a class, references to the class are completely replaced by the mock instance.
mock.patch is usually used when you are testing something that creates a new instance of a class inside of the test. mock.Mock instances are clearer and are preferred. If your self.sut.something metho...
Activity restart on rotation Android
...yboard visibility changes – and handle them within your Activity.
Start by adding the android:configChanges node to your Activity's manifest node
<activity android:name=".MyActivity"
android:configChanges="orientation|keyboardHidden"
android:label="@string/app_name">
or for ...
Is there any way to put malicious code into a regular expression?
...atching Can Be Simple And Fast
(but is slow in Java, Perl, PHP, Python, Ruby, ...) talks about ways that most modern NFAs, which all seem to derive from Henry Spencer’s code, suffer severe performance degradation, but where a Thompson‐style NFA has no such problems.
If you only admit patterns ...