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When to use f:viewAction / preRenderView versus PostConstruct?
When should one use the f:viewAction or preRenderView event to initialize data for a page versus using the @PostConstruct annotation? Is the rationale to use one or the other based on the type of scope of the backing bean e.g. If the backing bean is @RequestScoped , then would the choice of u...
What are best practices that you use when writing Objective-C and Cocoa? [closed]
...that I do not think are standard:
1) With the advent of properties, I no longer use "_" to prefix "private" class variables. After all, if a variable can be accessed by other classes shouldn't there be a property for it? I always disliked the "_" prefix for making code uglier, and now I can leave...
When and why should I use fragments in Android applications? [duplicate]
I often need the different parts of my applications to have their own special behavior and UI, and I don't know how fragments can help. In most cases, I think it is quicker to create 2 different activities (e.g., 1 for tablets and 1 for handsets), and to share the common behaviors and events in a th...
“Could not run curl-config: [Errno 2] No such file or directory” when installing pycurl
...
On Debian I needed the following packages to fix this
sudo apt install libcurl4-openssl-dev libssl-dev
share
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improve th...
Not showing placeholder for input type=“date” field
I am doing a phonegap app. When I am trying type="date" input field as shown below, it shows date picker in iPhone as I expected but it doesn't show the placeholder I have given. I found the same issue here in SO, but no solution anywhere.
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What happens to an open file handle on Linux if the pointed file gets moved or deleted
What happens to an open file handle on Linux if the pointed file meanwhile gets:
7 Answers
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deciding among subprocess, multiprocessing, and thread in Python?
I'd like to parallelize my Python program so that it can make use of multiple processors on the machine that it runs on. My parallelization is very simple, in that all the parallel "threads" of the program are independent and write their output to separate files. I don't need the threads to exchan...
HTML5 dragleave fired when hovering a child element
...emove the class.
var counter = 0;
$('#drop').bind({
dragenter: function(ev) {
ev.preventDefault(); // needed for IE
counter++;
$(this).addClass('red');
},
dragleave: function() {
counter--;
if (counter === 0) {
$(this).removeClass('...
PHP Pass variable to next page
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HTML / HTTP is stateless, in other words, what you did / saw on the previous page, is completely unconnected with the current page. Except if you use something like sessions, cookies or GET / POST variables. Sessions and cookies are quite easy to use, with session being by far more sec...
Unable to resolve “unable to get local issuer certificate” using git on Windows with self-signed cer
I am using Git on Windows. I installed the msysGit package. My test repository has a self signed certificate at the server. I can access and use the repository using HTTP without problems. Moving to HTTPS gives the error:
...