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Try-catch speeding up my code?
...e "ephemeral" -- that is, just pushed and popped on the stack, rather than allocated a specific location on the stack for the duration of the activation. We believe that the JITter will be able to do a better job of register allocation and whatnot if we give it better hints about when locals can be ...
Single vs Double quotes (' vs ")
...b Development often consists of many programming languages. HTML, JS, CSS, PHP, ASP, RoR, Python, ect. Because of this we have many syntax conventions for different programing languages. Often habbits from one language will follow us to other languages, even if it is not considered "proper" i.e. com...
What is a pre-revprop-change hook in SVN, and how do I create it?
... sure that the new svn:log message is not empty.
set bIsEmpty=true
for /f "tokens=*" %%g in ('find /V ""') do (
set bIsEmpty=false
)
if "%bIsEmpty%" == "true" goto ERROR_EMPTY
goto :eof
:ERROR_EMPTY
echo Empty svn:log messages are not allowed. >&2
goto ERROR_EXIT
:ERROR_PROPNAME
echo Only ...
Is there a difference between YES/NO,TRUE/FALSE and true/false in objective-c?
...
[[NSObject]alloc]init] does not equal TRUE or YES. So testing for object initialization with if ([[NSObject]alloc]init]==TRUE) will fail. I've never been comfortable with a Language defining a singular "true" value when in fact any non ...
“wait_fences: failed to receive reply: 10004003”?
...that import failed
UIAlertView * importFailedAlert = [[UIAlertView alloc] initWithTitle:NSLocalizedString(@"ErrorTitle5", @"Import failed")
message:NSLocalizedString(@"Error5", @"Something went wrong")
...
What is Type-safe?
...your program (or worse, possibly in other programs depending on how the OS allocates memory - very unlikely these days).
** While this first issue is not technically about data type, type safe languages address it inherently and it visually describes the issue to those unaware of how memory alloca...
Fastest way to reset every value of std::vector to 0
...
does assigning it to a new vector do heap allocation ? and then discard the allocation of the existing vector ? I could see that being slower than memset et al
– Conrad Jones
Jan 12 '18 at 19:40
...
Create batches in linq
...are simpler solutions that do not accumulate at all. Furthermore this will allocate space even for non-existent elements: Batch(new int[] { 1, 2 }, 1000000)
– Nick Whaley
Jul 12 '13 at 18:56
...
Best way to parse RSS/Atom feeds with PHP [closed]
...ll formed. Are there any other options for parsing RSS and Atom feeds with PHP?
10 Answers
...
In where shall I use isset() and !empty()
...riables and not just values, so isset("foobar") will raise an error. As of PHP 5.5, empty supports both variables and expressions.
So your first question should rather be if isset returns true for a variable that holds an empty string. And the answer is:
$var = "";
var_dump(isset($var));
The typ...