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SQLAlchemy: What's the difference between flush() and commit()?
... # been flushed yet.
s2.flush() # Now, Foo('B') is in the same state as
# Foo('A') was above.
print 3, s2.query(Foo).all()
s2.rollback() # Foo('B') has not been committed, and rolling
...
Why does the C# compiler not fault code where a static method calls an instance method?
...w answer (and this entire question) has mostly only historical interest by now!
(Pre C# 7.3:)
For some reason, overload resolution always finds the best match before checking for static versus non-static. Please try this code with all static types:
class SillyStuff
{
static void SameName(obje...
@property retain, assign, copy, nonatomic in Objective-C
...mic vs. atomic
- "atomic" is the default. Always use "nonatomic". I don't know why, but the book I read said there is "rarely a reason" to use "atomic". (BTW: The book I read is the BNR "iOS Programming" book.)
readwrite vs. readonly
- "readwrite" is the default. When you @synthesize, both a getter...
Generic method multiple (OR) type constraint
...to use one function. Ah well, thanks a lot! Just out of curiosity, do you know if there is a specific reason this isn't possible? (has it been left out of the language deliberately?)
– Mansfield
May 31 '12 at 12:55
...
How to test if a dictionary contains a specific key? [duplicate]
...d it helped a lot, but I was wondering - are you able to accept the answer now, 4.5yrs later?:) Or it can't be marked anymore due to the duplicate label?
– Michal
Dec 18 '15 at 14:24
...
Do HTML5 Script tag need type=“javascript”? [duplicate]
...
No, it's now officially useless.
The type attribute gives the language of the script or format of the
data. If the attribute is present, its value must be a valid MIME
type. The charset parameter must not be specified. The def...
How does the compilation/linking process work?
... output of the preprocessor. The compiler parses the pure C++ source code (now without any preprocessor directives) and converts it into assembly code. Then invokes underlying back-end(assembler in toolchain) that assembles that code into machine code producing actual binary file in some format(ELF,...
Difference between jQuery `click`, `bind`, `live`, `delegate`, `trigger` and `on` functions (with an
...nt handler, because it didn't have the class when the event was attached.
Now consider you wanted it to be the other way around: every time a link with class "myLink" appears somewhere on the page, you want it to have the same event handler automatically. This is very common when you have some kind...
Algorithm to generate a crossword
...
@Kaffeine, yep I know what you mean - I had to throw out these options because even though they could create really good grids, it's too hard to check (read: I couldn't be bothered), and chances are it's just interference anyway.
...
what is the difference between OLE DB and ODBC data sources?
...r products, but for the most part OLEDB remains a Microsoft-only standard. Now, most Microsoft data sources allow both ODBC and OLEDB access, mainly for compatibility with legacy ODBC data consumers. Also, there exists OLEDB provider (wrapper) for ODBC which allows one to use OLEDB to access ODBC da...