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Difference between var_dump,var_export & print_r
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var_dump and var_export relate like this (from the manual)
var_export() gets structured
information about the given variable.
It is similar to var_dump() with one
exception: the returned representation
is valid PHP code.
They differ from print_r that va...
What does '--set-upstream' do?
...th the current local branch checked-out),
will attempt to bring in commits from the <remote-branch> into the current local branch.
One way to avoid having to explicitly type --set-upstream is to use its shorthand flag -u as follows:
git push -u origin local-branch
This sets the upstream ass...
Iterate over object attributes in python
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vars(yc) gives the same result without having to inherit from another class.
– Nathan
Mar 24 '19 at 4:11
1
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What would be a good docker webdev workflow?
...tly.
For development - the another option is to map mysql data directories from your host/development machine using data volumes. This way you can manage data files for mysql (in docker) using git (on host) and "reload" initial state anytime you want (before starting mysql container).
Yes, I think ...
data.frame rows to a list
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Adding another comment from the future, an apply version is .mapply(data.frame, xy.df, NULL)
– alexis_laz
Jul 24 '16 at 8:40
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sqlalchemy flush() and get inserted id?
... You just saved my ass. I don't think I will ever use the ORM again coming from Django. The flush() command does NOT work as documented IMHO.
– Marc
May 8 '16 at 21:20
2
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How do C++ class members get initialized if I don't do it explicitly?
...try();
Commit();//Writes data to registry.
Retrieve();//Reads data from registry;
private:
CDynamicString m_cKeyName{L"Postal Address"};
CDynamicString m_cAddress;
};
Note the second string class which holds the actual postal address does not have an initializer so its default cons...
Vim: Move cursor to its last position
...) any motion command other than the i j k l movements. (The complete list, from the help docs, is "'"', "`", "G", "/", "?", n", "N", "%", "(", ")", "[[", "]]", "{", "}", ":s", ":tag", "L", "M", H" and the commands that start editing a new file.) So no, this won't "undo" 2j or similar, but it will wo...
How to print (using cout) a number in binary form?
...a college course about operating systems and we're learning how to convert from binary to hexadecimal, decimal to hexadecimal, etc. and today we just learned how signed/unsigned numbers are stored in memory using the two's complement (~number + 1).
...
How to implement a binary tree?
...ike C++ or Java, which require the semicolon at the end of the line. Aside from that optional use, semicolons can be used to chain statements in a single line. For example a=1; b=2; c=3 would be a valid single line in python.
– physicsGuy
May 9 '18 at 8:33
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