大约有 48,000 项符合查询结果（耗时：0.0855秒） [XML]
Is key-value observation (KVO) available in Swift?
...osure, then `[weak self]` is not needed
print("bar property is now \(object.bar)")
}
}
}
Note, in Swift 4, we now have strong typing of keypaths using the backslash character (the \.bar is the keypath for the bar property of the object being observed). Also, because it's us...
Handle Guzzle exception and get HTTP body
...ception for both (it's their superclass)
Code to handle such errors thus now looks something like this:
$client = new GuzzleHttp\Client;
try {
$client->get('http://google.com/nosuchpage');
}
catch (GuzzleHttp\Exception\ClientException $e) {
$response = $e->getResponse();
$re...
How to use hex color values
...
countelements is now just count :)
– Hlung
Apr 6 '15 at 16:24
...
How to create a self-signed certificate for a domain name for development?
...xactly. This is wrong! "Friendly name" has nothing to do with CN. I don't know why this answer has so many upvotes?
– c00000fd
Sep 23 '15 at 20:41
25
...
Understanding __get__ and __set__ and Python descriptors
... make sure those divisions are / 5.0 and / 9.0). That gives:
100.0
32.0
Now there are other, arguably better ways to achieve the same effect in python (e.g. if celsius were a property, which is the same basic mechanism but places all the source inside the Temperature class), but that shows what c...
Can you disable tabs in Bootstrap?
...Thanks worked a treat, also added css "cursor:no-drop;" for cursor so use knows why they can't click it
– arbme
Feb 11 '12 at 3:11
...
What is the easiest way to remove all packages installed by pip?
...ng command in place requirements.txt).
pip freeze > requirements.txt
Now to remove one by one
pip uninstall -r requirements.txt
If we want to remove all at once then
pip uninstall -r requirements.txt -y
If you're working on an existing project that has a requirements.txt file and your e...
Should Gemfile.lock be included in .gitignore?
...this post, myself included, are "blinded" by the question title. I realize now that my answer only answers a specific use case and not necessarily the right answer to this question. I will work on updating it in the near future. That said, the OP should have not marked my answer as correct if it did...
How to install CocoaPods?
...There are X dependencies from the Podfile
and X total pods installed."
Now close your Xcode project. Then locate and open the .xcworkspace Xcode project file and start coding. (You should no longer open the xcodeproj file)
...
Dependency injection through constructors or property setters?
...
Of course, there are a few subclasses plus even more for unit tests, so now I am playing the game of going around altering all the constructors to match, and it's taking ages.
It makes me think that using properties with setters is a better way of getting dependencies. I don't think injected de...