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Why does C++ not have reflection?
...able at least some metadata).
You don't pay for what you don't
use. That's one of the must basic
design philosophies underlying C++.
Why should my code carry around
metadata if I may never need it?
Moreover, the addition of metadata
may inhibit the compiler from
optimizing. Why should I pay that
cos...
The difference between try/catch/throw and try/catch(e)/throw e
...at very line throw e on the method containing that try-catch block.
Which one should you use? It really depends on each case.
Let's say you have a Person class with a .Save() method that will persist it into a database. Let's say that your application executes the Person.Save() method somewhere. I...
What is the difference between save and export in Docker?
...any change you made, any data file written during the container life. This one is more like a traditional backup.
It will give you a flat .tar archive containing the filesystem of your container.
Edit: as my explanation may still lead to confusion, I think that it is important to understand that...
Copying PostgreSQL database to another server
...irst command in this answer is to copy from local to remote and the second one is from remote to local. More -> https://www.postgresql.org/docs/9.6/app-pgdump.html
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Java's final vs. C++'s const
...y must be set before the constructor has finished, this can be achieved in one of two ways:
public class Foo {
private final int a;
private final int b = 11;
public Foo() {
a = 10;
}
}
In C++ you will need to use initialisation lists to give const members a value:
class Foo {
...
how to access iFrame parent page using jquery?
... the thanks before he thanked you. StackOverflow having problems with timezones maybe?
– belugabob
Mar 19 '10 at 8:49
23
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How to get a list of user accounts using the command line in MySQL?
...er' and host='somehost'; If you do DELETE FROM mysql.user;, all users are gone. Logins after the next mysql restart or FLUSH PRIVILEGES; eliminate users from memory. Here is an example of one of my posts on doing DELETE FROM mysql.user responsibly : dba.stackexchange.com/questions/4614/…
...
T-SQL stored procedure that accepts multiple Id values
...ty implications.
Passing the List as Many Parameters. Tedious and error prone, but simple.
Really Slow Methods. Methods that uses charindex, patindex or LIKE.
I really can't recommend enough to read the article to learn about the tradeoffs among all these options.
...
What does android:layout_weight mean?
I don't understand how to use this attribute. Can anyone tell me more about it?
13 Answers
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Remove rows with duplicate indices (Pandas DataFrame and TimeSeries)
...es and are compiled into monthly files for each weather station. Once I'm done parsing a file, the DataFrame looks something like this:
...