大约有 2,500 项符合查询结果（耗时：0.0276秒） [XML]
Capybara Ambiguity Resolution
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As of Capybara 2.0 don't do this unless you absolutely have to. See @Andrey's answer below and the explanation of Ambiguous Matches in the upgrade guide linked above.
– jim
Oct 8 '14 at 23:34
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Which is faster: Stack allocation or Heap allocation
This question may sound fairly elementary, but this is a debate I had with another developer I work with.
23 Answers
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RESTful Services - WSDL Equivalent
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WSDL 2.0 specification has added support for REST web services too. Best of both worlds scenario. Problem is WSDL 2.0 is not widely supported by most tools out there yet. WSDL 2.0 is W3C recommended, WSDL1.1 is not W3C recommended...
Storing a Map using JPA
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JPA 2.0 supports collections of primitives through the @ElementCollection annotation that you can use in conjunction with the support of java.util.Map collections.
Something like this should work:
@Entity
public class Example {...
How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?
... 3.42
// Delay 2 seconds
DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) {
print("Sum of times: \(time1 + time2)")
}
Swift 2
let time1 = 8.23
let time2 = 3.42
// Delay 2 seconds
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, Int64(2.0 * Double(NSEC_PER_SEC))), dispatch_get_main_queue...
How do I go straight to template, in Django's urls.py?
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Django 2.0+
Use the class based generic views but register with the django 2.0+ pattern.
from django.urls import path
from django.views.generic import TemplateView
urlpatterns = [
path('foo/', TemplateView.as_view(template_na...
Positioning MKMapView to show multiple annotations at once
... region.center.latitude = (southWest.latitude + northEast.latitude) / 2.0;
region.center.longitude = (southWest.longitude + northEast.longitude) / 2.0;
region.span.latitudeDelta = meters / 111319.5;
region.span.longitudeDelta = 0.0;
_savedRegion = [_mapView regi...
What is a Portable Class Library?
... This is the best interview/video I've seen to date covering .NET Standard 2.0
UPDATE Sep 27 2016: .NET Standard 2.0 announcement post has more good info
UPDATE Jun 6 2016: This article explains well how the .NETStandard library mechanism supersedes much of PCL
UPDATE Jul 10 2013: Excellent state...
How to migrate/convert from SVN to Mercurial (hg) on windows
...any thanks to bgever for pointing out in the comments that with TortoiseHg 2.0, enabling the convert extension is easier than ever. As he says
With TortoiseHG 2.0 this has been made
much simpler: Start the TortoiseHG
Workbench from the Start menu. Select
File --> Settings. Select Exten...
Create array of symbols
...original answer was written back in September '11, but, starting from Ruby 2.0, there is a shorter way to create an array of symbols! This literal:
%i[address city state postal country]
will do exactly what you want.
shar...