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Error: Can't set headers after they are sent to the client
...eader gets sent, but then further headers (like a 30X redirect) try to add extra headers, but it's too late since the response header has already been transmitted.
I'm not sure exactly what's causing your error, but look at any callbacks as potential areas to investigate.
One easy tip to simplify ...
How to remove/ignore :hover css style on touch devices
...rently.
There are two main options that occur to me immediately: (1) user-string checking, or (2) maintaining separate mobile pages using a different URL and having users choose what's better for them.
If you're able to use an internet duct-tape language such as PHP or Ruby, you can check the use...
How do I programmatically “restart” an Android app?
...urClass.class);
intent.addFlags(FLAG_ACTIVITY_NEW_TASK);
intent.putExtra(KEY_RESTART_INTENT, nextIntent);
context.startActivity(intent);
if (context instanceof Activity) {
((Activity) context).finish();
}
Runtime.getRuntime().exit(0);
}
Which is used in the ProcessPh...
Cycles in family tree software
...ernally should be going to A on presentation of data.
This will make some extra work for the user, but I guess IT would be relatively easy to implement and maintain.
Building from that, you could work on code synching A and B to avoid inconsistencies.
This solution is surely not perfect, but is a...
Why does SIGPIPE exist?
...d.h>
# include <stdio.h>
# include <signal.h>
# include <string.h>
int writeCount = 0;
void sighandler(int sig) {
char buf1[30] ;
sprintf(buf1,"signal %d writeCount %d\n", sig, writeCount);
ssize_t leng = strlen(buf1);
write(2, buf1, leng);
_exit(1);
}
...
cancelling queued performSelector:afterDelay calls
...erformSelector
cancelPreviousPerformRequestsWithTarget
(Just to make it extra hard to remember, without searching the docs.)
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What is offsetHeight, clientHeight, scrollHeight?
...omething that resides inside of the HTML container, so it doesn't count as extra measurements like margin or border. So :
clientHeight property returns the viewable height of an element in
pixels, including padding, but not the border, scrollbar or margin.
ScrollHeight is all the scrol...
Best way to store password in database [closed]
...note that a common misconception is to simply add the same unique and long string to all passwords; while this is not horrible, it is best to add unique salts to every password. Read this for more.
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What's the 'environment' task in Rake?
...pers, etc. Without the :environment, you won't have access to any of those extras.
Also => :environment itself does not make available any environment-related variables, e.g. environment, @environment, RAILS_ENV, etc.
sh...
MongoDB with redis
...fit from the flexibility of MongoDB for main persistent data, and from the extra features provided by Redis (low latency, item expiration, queues, pub/sub, atomic blocks, etc ...). It is indeed a good combination.
Please note you should never run a Redis and MongoDB server on the same machine. Mong...