大约有 44,000 项符合查询结果（耗时：0.0394秒） [XML]
Change UICollectionViewCell size on different device orientations
... layout:(UICollectionViewLayout *)collectionViewLayout
sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
// Adjust cell size for orientation
if (UIDeviceOrientationIsLandscape([[UIApplication sharedApplication] statusBarOrientation])) {
return CGSizeMake(170.f, 170.f...
How to pass command line arguments to a rake task
...e about Rake internals.
RAILS NOTE:
If running the task from Rails, it's best to preload the environment by adding => [:environment] which is a way to setup dependent tasks.
task :work, [:option, :foo, :bar] => [:environment] do |task, args|
puts "work", args
end
...
Extract a substring from a string in Ruby using a regular expression
...lt;([^>]*)>/).last.first
scan creates an array which, for each <item> in String1 contains the text between the < and the > in a one-element array (because when used with a regex containing capturing groups, scan creates an array containing the captures for each match). last gives...
Big O of JavaScript arrays
Arrays in JavaScript are very easy to modify by adding and removing items. It somewhat masks the fact that most languages arrays are fixed-size, and require complex operations to resize. It seems that JavaScript makes it easy to write poorly performing array code. This leads to the question:
...
What is The difference between ListBox and ListView
...ty. This property allows you to specify a predefined way of displaying the items. The only predefined view in the BCL (Base Class Library) is GridView, but you can easily create your own.
Another difference is the default selection mode: it's Single for a ListBox, but Extended for a ListView
...
Save classifier to disk in scikit-learn
...if type(self).__module__.startswith('sklearn.'):
return dict(state.items(), _sklearn_version=__version__)
else:
return state
The recommended method to save your model to disc is to use the pickle module:
from sklearn import datasets
from sklearn.svm import SVC
iris = datasets....
Doctrine and composite unique keys
...n to several lines to make it more readable especially if you have several items to mention (index in the example below).
use Doctrine\ORM\Mapping as ORM;
/**
* VideoSettings
*
* @ORM\Cache(usage="NONSTRICT_READ_WRITE")
* @ORM\Entity(repositoryClass="AppBundle\Repository\VideoSettingsRepositor...
Quicksort vs heapsort
... worst case.
What is superior in Quicksort is not the worst case, but the best case! In best case you do the same number of comparisons, ok, but you swap almost nothing. In average case you swap part of the elements, but not all elements, as in Heapsort and Mergesort. That is what gives Quicksort t...
WAMP/XAMPP is responding very slow over localhost
...ed to High Performance. You can do this in Control Panel\All Control Panel Items\Power Options
Disable IPv6
The credits of this particular task go to Jef where he pointed this out in his blog post. From the Windows 8 desktop, press the Windows Key and the R key at the same time
Type regedit i...
How to create multiple levels of indentation in Javadoc?
...
Your code results in a list with empty items. Though it's properly nested in HTML, the rendered result is ugly.
– naXa
Apr 27 '18 at 12:41
...