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How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?
...ger numbers, which might cause trouble if you're converting a table. Personally I'd rather have the query error out up front and know that some of my "integers" are screwy (You can also select with E'\\d{6,}$' first to make sure).
– Anthony Briggs
May 5 '17 at ...
How many spaces will Java String.trim() remove?
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All of them.
Returns:
A copy of this string with leading and trailing white space removed, or this string if it has no leading or trailing white space.
~ Quoted from Java 1.5.0 docs
(But why didn't you ju...
'console' is undefined error for Internet Explorer
...onsole = ...
An undefined variable cannot be referred directly. However, all global variables are attributes of the same name of the global context (window in case of browsers), and accessing an undefined attribute is fine.
Or use if (typeof console === 'undefined') console = ... if you want to a...
Returning null as an int permitted with ternary operator but not if statement
...ll trying to understand capture conversion and lub(T1,T2))?? Also, Is it really possible to apply boxing to a null value? Wouldn't this be like "guessing"??
– Marsellus Wallace
Nov 11 '11 at 21:03
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How can I check the syntax of Python script without executing it?
...
import script, but all code must be in functions. Which is good practice anyway. I've even adopted this for shell scripts. From here it's a small step to unit testing.
– Henk Langeveld
Aug 10 '12 at 12:07
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Serializing an object as UTF-8 XML in .NET
...o a string again, so its no longer in UTF-8, but back in UTF-16 (though ideally its best to consider strings at a higher level than any encoding, except when forced to do so).
To get the actual UTF-8 octets you could use:
var serializer = new XmlSerializer(typeof(SomeSerializableObject));
var mem...
Meaning of Git checkout double dashes
...maybe 20 or so), most commands are separate programs from Bash. It is actually part of the POSIX standard that -- can be used to separate options from other arguments, so you will see it on commands like cp and mv (which are not part of Bash).
– Dietrich Epp
N...
Disabling Chrome Autofill
...u telling the browser that this field should be auto completed as a field called "no". If you generate unique random autocomplete names you disable auto complete.
If your users have visited bad forms their autofill information may be corrupt. Having them manually go in and fix their autofill informa...
Is the 'override' keyword just a check for a overridden virtual method?
... And what would an explicit class definition do? Never heard about that at all.
– Christian Rau
Aug 13 '13 at 9:21
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In a bootstrap responsive page how to center a div
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</div>
</div>
It's a simple example of a horizontally and vertically div centered in all screen sizes.
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