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What is Func, how and when is it used
... use exactly as you would use sqr:
f1(2);
Console.WriteLine(f2(f1(4)));
etc.
Remember though, that it's a delegate, for more advanced info refer to documentation.
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How do you iterate through every file/directory recursively in standard C++?
...Is there any way to make it work with Cyrilic characters like - б, в, г etc ?
– unresolved_external
Aug 1 '12 at 19:29
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How do I read configuration settings from Symfony2 config.yml?
...ass Configuration implements ConfigurationInterface
{
public function getConfigTreeBuilder()
{
$treeBuilder = new TreeBuilder();
$rootNode = $treeBuilder->root( 'my_nice_project' );
$rootNode->children()->scalarNode( 'contact_email' )->end();
ret...
Programmatically get the version number of a DLL
...
To get it for the assembly that was started (winform, console app, etc...)
using System.Reflection;
...
Assembly.GetEntryAssembly().GetName().Version
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postgresql - sql - count of `true` values
... on a column that uses another column as the predicate, while allowing to fetch differently filtered aggregates in a single query:
select count(*),
sum(otherCol) filter (where myCol)
from tbl;
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How to find the type of an object in Go?
... do I find the type of an object in Go? In Python, I just use typeof to fetch the type of object. Similarly in Go, is there a way to implement the same ?
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ERROR 1396 (HY000): Operation CREATE USER failed for 'jack'@'localhost'
...ving privileges and DROP USER for deleting them:
REVOKE priv1,priv2,priv3,etc... FROM 'jack@localhost'; // remove certain privileges
DROP USER 'jack@localhost'; // completely delete the account
Best to use the tools provided rather than mucking around in the background.
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How should one use std::optional?
... fail
This requires dynamic memory allocation, worrying about ownership, etc. - always prefer one of the other two signatures above.
Another example:
class Contact
{
std::optional<std::string> home_phone;
std::optional<std::string> work_phone;
std::optional<std::stri...
What is the maximum float in Python?
...er of objects allowed in a collection (e.g., maximum size of a list, dict, etc.), and corresponds to a signed version of the C size_t type; the second is the point after which the int type switches to long, and is the max value of a C long. On some platforms the two values are different: e.g., on ...
How to scroll to the bottom of a UITableView on the iPhone before the view appears
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I believe that calling
tableView.setContentOffset(CGPoint(x: 0, y: CGFloat.greatestFiniteMagnitude), animated: false)
will do what you want.
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