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Why should I use 'li' instead of 'div'?
...VER, back in the day (and maybe still), each browser added it's own little formatting to list elements, like spacing, margins, etc, so that is exactly why a lot of people prefer using divs. because no one wants to add a bunch of code to zero out formatting, or to detect browsers, and those slight d...
Proper way to use **kwargs in Python
...
pylint flags it as bad form to use kwargs in __init__(). Can someone explain why this is a lint-worthy transgression?
– hughdbrown
Nov 16 '09 at 5:16
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Why does C++ require a user-provided default constructor to default-construct a const object?
...9), the default constructor for T is called (and the initialization is ill-formed if T has no accessible default constructor);
It simply talks about default constructor of T, whether its user-defined or compiler-generated is irrelevant.
If you're clear up to this, then understand what the spec ne...
What's an appropriate HTTP status code to return by a REST API service for a validation failure?
...I is supposed to have an ISO-8601 date and you find that it's in the wrong format or refers to February 31st, then you would return an HTTP 400. Ditto if you expect well-formed XML in an entity body and it fails to parse.
(1/2016): Over the last five years WebDAV's more specific HTTP 422 (Unproces...
The difference between bracket [ ] and double bracket [[ ]] for accessing the elements of a list or
... x[[i]]
x[[i, j]]
x$a
x$"a"
For vectors and matrices the [[ forms are rarely used, although they have some slight semantic differences from the [ form (e.g. it drops any names or dimnames attribute, and that partial matching is used for character indices). When indexing multi-dimensio...
Differences between contentType and dataType in jQuery ajax function
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From the documentation:
contentType (default: 'application/x-www-form-urlencoded; charset=UTF-8')
Type: String
When sending data to the server, use this content type. Default is "application/x-www-form-urlencoded; charset=UTF-8", which is fine for most cases. If you explicitly pass in a co...
Saving and Reading Bitmaps/Images from Internal memory in Android
... image to the OutputStream
bitmapImage.compress(Bitmap.CompressFormat.PNG, 100, fos);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
fos.close();
} catch (IOException e) {
e.printStackTrace(...
Spring MVC: How to perform validation?
I would like to know what is the cleanest and best way to perform form validation of user inputs. I have seen some developers implement org.springframework.validation.Validator . A question about that: I saw it validates a class. Does the class have to be filled manually with the values from the us...
Commenting in a Bash script inside a multiline command
...need to be before the \ continuation.
Note that parameter expansion is performed inside the comment:
$ ls file
ls: cannot access 'file': No such file or directory
$ echo foo${IFS# This command will create file: $(touch file)}bar
foo bar
$ ls file
file
Rare exception
The only rare case this fail...
Import / Export database with SQL Server Server Management Studio
...te" from the context menu.
Make sure "Delete backup and restore history information for databases" check-box is checked.
Select "OK" to complete the deletion process.
Repeat the above steps for the "wtMaster" part of the database.
Right click on "Databases" and select "Restore Database..." from the...