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How long do browsers cache HTTP 301s?
... I confirm that redirecting back (with a PHP redirection in my case) works perfectly on Google Chrome as long as (obviously) you removed the initial 301 redirect.
– Vincent Poirier
Mar 14 '17 at 14:00
...
How do I use NSTimer?
...in another method. You can then call invalidate on the NSTimer instance:
[myTimer invalidate];
myTimer = nil;
It's also good practice to nil out the instance variable (for example if your method that invalidates the timer is called more than once and the instance variable hasn't been set to nil a...
Do you debug C++ code in Vim? How? [closed]
... "like" debugger based off GDB - cgdb.github.io
– Jimmy MG Lim
Apr 3 '19 at 8:00
add a commen...
How can I check if a URL exists via PHP?
...alidUrl($url) ){
unset($urls[$k]);
}
}
echo "yay all done! now show my site";
foreach($urls as $url){
echo "<a href=\"{$url}\">{$url}</a><br/>";
}
The functions below could be helpfull, you probably want to modify them to suit your needs:
function isValidUrl($url){
...
Why don't C++ compilers define operator== and operator!=?
...ns are defined by
default and I prohibit copying of
objects of many of my classes.
However, C++ inherited its default
assignment and copy constructors from
C, and they are frequently used.
So instead of "why doesn't C++ have a default operator==()?", the question should have been "why d...
How do I parse a string with a decimal point to a double?
... value in code. I prefer to use double.Parse or Convert.ToDouble that make my intention obvious.
– Mehrdad Afshari
Aug 30 '09 at 21:29
4
...
How can I debug javascript on Android?
... I have just tried, but the about:debug trick did not work on my Nexus S with ICS 4.0.3.
– derflocki
May 21 '12 at 6:39
6
...
How can I backup a remote SQL Server database to a local drive?
...m. In care of using it for backup strategy need to some additional work by myself but I think is better than using some third parties tools like RedGate etc. Maybe I'v paranoia but I think most of third party tools have extra code and will got my control and reduce simplicity and clarifying of scrip...
Why CancellationToken is separate from CancellationTokenSource?
...request but cannot initiate one.
Link: .NET 4 Cancellation Framework
In my opinion, the fact that CancellationToken can only observe the state and not change it, is extremely critical. You can hand out the token like a candy and never worry that someone else, other than you, will cancel it. It pr...
Differences between Perl and PHP [closed]
...s of PHP out of your mind when learning Perl, else you'll get tripped up.
My brain hurts now, so I'm going to stop.
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