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Is returning null bad design? [closed]
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I too do not like return null. You are separating root cause from symptom, making debugging harder. Either throw an exception (fail fast), or call a checker method that returns a boolean first (e.g. isEmpty()) and only if it is true then call the method. People argue agains...
Is there a use-case for singletons with database access in PHP?
I access my MySQL database via PDO. I'm setting up access to the database, and my first attempt was to use the following:
1...
“CAUTION: provisional headers are shown” in Chrome debugger
...e SSL port of 8081 (node has to be on a higher port as it cannot be ran as root in prod). So I guess Chrome doesn't like SSL requests to unconventional SSL ports, but perhaps their error message could be more specific.
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Combining multiple git repositories
...thesis
|_(your thesis...)
Then create a git repository in the root directory, pull everything into it and remove the old repositories:
$ cd phd
$ git init
$ git pull code
$ rm -rf code/code
$ rm -rf code/.git
$ git pull figures --allow-unrelated-histories
$ rm -rf figures/figures
$ r...
Prevent any form of page refresh using jQuery/Javascript
...y be trying. You should go back to why you need this solution, what's the root problem here?. Start there and find a different way to go about solving the problem. Perhaps is you elaborated on why you think you need to do this it would help in finding such a solution.
Breaking fundamental browse...
What does $1 [QSA,L] mean in my .htaccess file?
...the request is done that matches ^(.+)$ (matches any URL except the server root), it will be rewritten as index.php?url=$1 which means a request for ollewill be rewritten as index.php?url=olle).
QSA means that if there's a query string passed with the original URL, it will be appended to the rewrit...
How to make exe files from a node.js app?
... you do the following:
Zip up all your files, with a package.json in the root
Change the extension from .zip to .nw
copy /b nw.exe+app.nw app.exe
Just as an added note - I've shipped several production box/install cd applications using this, and it's worked great. Same app runs on windows, mac, ...
How to give Jenkins more heap space when it´s started as a service under Windows?
...spectively. These
files can be found in $JENKINS_HOME
and in the slave root directory
respectively, after you've install
them as Windows services.
The file format should be
self-explanatory. Tweak the arguments
for example to give JVM a bigger
memory.
https://wiki.jenkins-ci.org...
Soft keyboard open and close listener in an activity in Android
... adjustResize in the manifest. You can use a layout listener to see if the root layout of your activity is resized by the keyboard.
I use something like the following base class for my activities:
public class BaseActivity extends Activity {
private ViewTreeObserver.OnGlobalLayoutListener keyb...
Why use Dijkstra's Algorithm if Breadth First Search (BFS) can do the same thing faster?
...est number of steps it takes to get to any given node from your source (“root”).
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