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Error in Swift class: Property not initialized at super.init call
...
Quote from The Swift Programming Language, which answers your question:
“Swift’s compiler performs four helpful safety-checks to make sure
that two-phase initialization is completed without error:”
Safety check 1 ...
How is “mvn clean install” different from “mvn install”?
...piled files you have, making sure that you're really compiling each module from scratch.
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What exactly are iterator, iterable, and iteration?
...ich defines a __getitem__ method that can take sequential indexes starting from zero (and raises an IndexError when the indexes are no longer valid). So an iterable is an object that you can get an iterator from.
An iterator is an object with a next (Python 2) or __next__ (Python 3) method.
Whene...
Powershell equivalent of bash ampersand (&) for forking/running background processes
... or a file that has an associated executable, use Start-Process (available from v2):
Start-Process -NoNewWindow ping google.com
You can also add this as a function in your profile:
function bg() {Start-Process -NoNewWindow @args}
and then the invocation becomes:
bg ping google.com
In my opi...
How do I use pagination with Django class based generic ListViews?
... Class-based generic views.
For example, in your views.py:
import models
from django.views.generic import ListView
class CarListView(ListView):
model = models.Car # shorthand for setting queryset = models.Car.objects.all()
template_name = 'app/car_list.html' # optional (the default ...
Redirect From Action Filter Attribute
...y on its base controller) that simply calls the protected RedirectToAction from System.Web.Mvc.Controller. Adding this method allows for a public call to your RedirectToAction from the filter.
public new RedirectToRouteResult RedirectToAction(string action, string controller)
{
return base.Red...
iOS (iPhone, iPad, iPodTouch) view real-time console log terminal
... Debugging Deployed iOS Apps for Xcode 6 is:
Choose Window -> Devices from the Xcode menu.
Choose the device in the left column.
Click the up-triangle at the bottom left of the right hand panel to show the device console.
...
Why is IntelliJ 13 IDEA so slow after upgrading from version 12?
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I had the same problem with slowness in IntelliJ 13 after upgrading from 12.
What worked for me was editing the idea64.vmoptions in the bin folder and setting the max heap to 8 GB (was 512 MB) and the Max PermGen to at least 1GB (was 300MB).Example below:
-Xms128m
-Xmx8192m
-XX:MaxPermSize=1...
How do I load an org.w3c.dom.Document from XML in a string?
...dom.Document;
import java.io.ByteArrayInputStream;
public Document loadXMLFromString(String xml) throws Exception
{
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setNamespaceAware(true);
DocumentBuilder builder = factory.newDocumentBuilder();
retur...
How to send an email using PHP?
...dy@example.com';
$subject = 'the subject';
$message = 'hello';
$headers = 'From: webmaster@example.com' . "\r\n" .
'Reply-To: webmaster@example.com' . "\r\n" .
'X-Mailer: PHP/' . phpversion();
mail($to, $subject, $message, $headers);
?>
Reference:
http://php.net/manual/en/function.m...