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Template default arguments
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@Pubby I suppose it would create some unnecessary complications if Foo might be a template identifier or might be an explicit instantiation depending on whether there's a default argument. Better keep the explicit instantiation s...
Recover unsaved SQL query scripts
...ry
CROSS APPLY sys.dm_exec_sql_text(execquery.sql_handle) AS execsql
ORDER BY execquery.last_execution_time DESC
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Uses for Optional
...it's rather clumsy. Suppose you have a method that takes a string followed by an optional second string. Accepting an Optional as the second arg would result in code like this:
foo("bar", Optional.of("baz"));
foo("bar", Optional.empty());
Even accepting null is nicer:
foo("bar", "baz");
foo("bar...
How to increase the execution timeout in php?
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sorry, I've no clue what you mean by that :(
– Hannes
Sep 30 '10 at 9:50
@Aam...
Difference between abstract class and interface in Python
...Creating an Abstract Base Class
We can create our own Abstract Base Class by setting the metaclass to abc.ABCMeta and using the abc.abstractmethod decorator on relevant methods. The metaclass will be add the decorated functions to the __abstractmethods__ attribute, preventing instantiation until th...
What is the correct value for the disabled attribute?
... markup.
For HTML5, <input type="text" disabled /> is valid and used by W3C on their samples.
In fact, both ways works on all major browsers.
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How to avoid null checking in Java?
... statement throws an Error (AssertionError) if the condition is not true. By default, Java ignores assertions. You can enable assertions by passing the option -ea to the JVM. You can enable and disable assertions for individual classes and packages. This means that you can validate code with the...
How do I modify fields inside the new PostgreSQL JSON datatype?
...tion$;
Updated: Added function for replacing an existing json field's key by another given key. Can be in handy for updating data types in migrations or other scenarios like data structure amending.
CREATE OR REPLACE FUNCTION json_object_replace_key(
json_value json,
existing_key text,
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How do I set the rounded corner radius of a color drawable using xml?
...ember to add padding for the start and end so the text doesn't get crowded by the rounded edge
– RowanPD
Jun 4 '17 at 15:49
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What does the filter parameter to createScaledBitmap do?
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A quick dig through the SKIA source-code indicates that (at least by default) the FILTER flag causes it to do a straightforward bilinear interpolation. Check Wikipedia or your favorite graphics reference to see what the expected consequences are. Traditionally, you want to do bilinear or ...