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How to check for null in Twig?
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In addition, unlike the PHP isset() function, is defined will return true if a variable is defined and it's value is null.
– Pavel Petrov
Sep 19 '17 at 7:59
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C libcurl get output into a string
...callback has a char* as first argument, so you could use that and omit the casting. And lastly, s->resize() actually initializes the newly allocated space. As you are about to overwrite it anyway, s->reserve() would be more efficient.
– Jeinzi
Jan 31 '19 ...
Android - get children inside a View?
..., so the recursive call of getAllChildren could cause an exception, as the cast fails. So you should add a if (!(v instanceof ViewGroup)) return; before the cast
– Phil
Sep 27 '12 at 7:19
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How to insert a character in a string at a certain position?
...nt't give the right result, because 12345/100 = 123 in integer and is only cast to 123.00 afterwards. ((float)12345/100) would work.
– rurouni
May 5 '11 at 13:20
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XmlSerializer: remove unnecessary xsi and xsd namespaces
... that.
// The factory method returns a XmlWriter, not a XmlTextWriter, so cast it.
XmlTextWriter xtw = (XmlTextWriter)XmlTextWriter.Create(ms, xws);
// Then we can set our indenting options (this is, of course, optional).
xtw.Formatting = Formatting.Indented;
// Now serialize our object.
xs.Serial...
How can I convert a zero-terminated byte array to string?
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Just to be clear though, this is casting a sequence of bytes to something that is hopefully a valid UTF-8 string (and not say, Latin-1 etc., or some malformed UTF-8 sequence). Go will not check this for you when you cast.
– Cameron Kerr...
When should I use a struct rather than a class in C#?
...e that when a struct implements an interface - as Enumerator does - and is cast to that implemented type, the struct becomes a reference type and is moved to the heap. Internal to the Dictionary class, Enumerator is still a value type. However, as soon as a method calls GetEnumerator(), a reference-...
How to terminate the script in JavaScript?
How can I exit the JavaScript script much like PHP's exit or die ? I know it's not the best programming practice but I need to.
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MySQL - UPDATE query based on SELECT Query
...UPDATE
receipt_invoices dest,
(
SELECT
`receipt_id`,
CAST((net * 100) / 112 AS DECIMAL (11, 2)) witoutvat
FROM
receipt
WHERE CAST((net * 100) / 112 AS DECIMAL (11, 2)) != total
AND vat_percentage = 12
) src
SET
dest.price = src.witoutvat,
dest.amou...
Composer killed while updating
... I tried to install a new package to my Laravel 4 project.
But when I run php composer.phar update I get this:
14 Answers...