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Android: Clear the back stack
...o
good effect in conjunction with
FLAG_ACTIVITY_NEW_TASK: if used to
start the root activity of a task, it
will bring any currently running
instance of that task to the
foreground, and then clear it to its
root state. This is especially useful,
for example, when launching an
activi...
Best way to store time (hh:mm) in a database
...
DATETIME start DATETIME end
I implore you to use two DATETIME values instead, labelled something like event_start and event_end.
Time is a complex business
Most of the world has now adopted the denery based metric system for most...
How to show the last queries executed on MySQL?
...n. /var/log /var/data/log /opt /home/mysql_savior/var
You don't have to restart the server and interrupt any current connections to it.
restarting the server leaves you where you started (log is by default still off)
For more information, see
MySQL 5.1 Reference Manual - Server System Variables -...
How to asynchronously call a method in Java
...ad(new Runnable() {
public void run() {
//Do whatever
}
}).start();
(At least in Java 8), you can use a lambda expression to shorten it to:
new Thread(() -> {
//Do whatever
}).start();
As simple as making a function in JS!
...
What is the purpose of wrapping whole Javascript files in anonymous functions like “(function(){ … }
...ification).
Earlier I described how these functions run automatically at startup, but if they run automatically who is passing in the arguments? This technique assumes that all the parameters you need are already defined as global variables. So if jQuery wasn't already defined as a global variabl...
Get exit code of a background process
...ise, while solution02 is a little complicated.
solution01
#!/bin/bash
# start 3 child processes concurrently, and store each pid into array PIDS[].
process=(a.sh b.sh c.sh)
for app in ${process[@]}; do
./${app} &
PIDS+=($!)
done
# wait for all processes to finish, and store each process'...
ASP.NET: HTTP Error 500.19 – Internal Server Error 0x8007000d
...oad proper version, remove the current one and re-install, close IIS and restart IIS, now I can see "URL Rewrite".
– Box Very
Sep 19 '16 at 22:47
...
How is Docker different from a virtual machine?
... think it is possible.
A full virtualized system usually takes minutes to start, whereas Docker/LXC/runC containers take seconds, and often even less than a second.
There are pros and cons for each type of virtualized system. If you want full isolation with guaranteed resources, a full VM is the w...
Efficient string concatenation in C++
...rack of the string length.
Keep a pointer to the end of the string and the start, or just the start and use the start + the length as an offset to find the end of the string.
Make sure the buffer you are storing your string in, is big enough so you don't need to re-allocate data
Use strcpy instead ...
Mercurial - all files that changed in a changeset?
...s that changed through a range of changesets, it's as easy as:
hg log -r [start rev]:[end rev] --template "{file_mods}{file_adds}\n" | sed -e 's/ /\n/g' | sort -d | uniq
hg log -r [start rev]:[end rev] --template "{file_mods}{file_adds}\n" will show you a list of each file changed or added in ea...