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Extract file name from path, no matter what the os/path format
....path.split or os.path.basename as others suggest won't work in all cases: if you're running the script on Linux and attempt to process a classic windows-style path, it will fail.
Windows paths can use either backslash or forward slash as path separator. Therefore, the ntpath module (which is equiv...
How to specify the order of CSS classes?
... CSS and the class attribute. I always thought, the order in which I specify multiple classes in the attribute value has a meaning. The later class could/should overwrite definitions of the previous, but this doesn't seem to work. Here's an example:
...
Should Javadoc comments be added to the implementation?
...ds that are implementation only (not overrides), sure, why not, especially if they are public.
If you have an overriding situation and you are going to replicate any text, then definitely not. Replication is a surefire way of causing discrepancies. As a result, users would have a different understa...
Why do loggers recommend using a logger per class?
...capture the source of the log message (ie. the class writing to the log). If you don't have one logger per class, but instead have one logger for the entire app, you need to resort to more reflection tricks to know where the log messages are coming from.
Compare the following:
Log per class
usi...
Force an Android activity to always use landscape mode
...
Looking at the AndroidManifest.xml (link), on line 9:
<activity android:screenOrientation="landscape" android:configChanges="orientation|keyboardHidden" android:name="VncCanvasActivity">
This line specifies the screenOrientation as landscape...
JavaScript plus sign in front of function expression
...ely, e.g.:
+function() { console.log("Foo!"); }();
Without the + there, if the parser is in a state where it's expecting a statement (which can be an expression or several non-expression statements), the word function looks like the beginning of a function declaration rather than a function expre...
Select rows which are not present in other table
...nated unless EXCEPT ALL is used.
Typically, you'll want the ALL keyword. If you don't care, still use it because it makes the query faster.
NOT IN
Only good without NULL values or if you know to handle NULL properly. I would not use it for this purpose. Also, performance can deteriorate with big...
What is the meaning of the 'g' flag in regular expressions?
...@xr280xr Not irrelevant, more like counterproductive. It will break things if you re-use the RegExp. var r = /a/g; console.log(r.test('a'), r.test('a')); // true false
– Janosch
Oct 7 '18 at 18:38
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Random record in ActiveRecord
...ND() or RANDOM() (depending on the database). It's not a performance issue if you don't have a performance issue.
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SQL Server reports 'Invalid column name', but the column is present and the query works through mana
...ct to SQL Server (something like userid.PerfDiag).
When you have an unqualified reference to a schema object (such as a table) — one not qualified by schema name — the object reference must be resolved. Name resolution occurs by searching in the following sequence for an object of the appropria...