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Why does Enumerable.All return true for an empty sequence? [duplicate]
... the specified predicate, or if the sequence is empty; otherwise, false.
Now you can argue about whether or not it should work that way (it seems fine to me; every element of the sequence conforms to the predicate) but the very first thing to check before you ask whether something is a bug, is the...
Why does sizeof(x++) not increment x?
... variable length array is an array declared with the size being a value unknown during compilation, for instance if you read N from stdin and make int array[N]. This is one of C99 features, unavailable in C++.
– Kos
Nov 22 '11 at 11:23
...
How to show a dialog to confirm that the user wishes to exit an Android Activity?
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This is the method() what I am looking for but I did not know where to call this method().
– user2841300
Dec 18 '13 at 9:07
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To ARC or not to ARC? What are the pros and cons? [closed]
... unroll loops, eliminate temporary variables, inline functions, etc.)
OK, now I will tell you about the small downsides:
If you're a long-time ObjC developer, you will twitch for about a week when you see ARC code. You will very quickly get over this.
There are some (very) small complications in ...
Is an anchor tag without the href attribute safe?
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Hello @Gunnar, the link seems to be gone now. Do you have another reference for the claim?
– user31782
Jan 9 '17 at 15:16
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Python argparse: default value or specified value
...ring as default) and "" (empty string as entered by user). In the code for now I'm using the default and since I need to do some ops, I have something like this self.foo = (args.bar or some_else_source).upper(). It will break on None object AFAIUC.
– 0andriy
Au...
How do I run Asynchronous callbacks in Playground
...
guard let data = data, error == nil else {
print(error ?? "Unknown error")
return
}
let contents = String(data: data, encoding: .utf8)
print(contents!)
}.resume()
PlaygroundPage.current.needsIndefiniteExecution = true
Or in Swift 2:
import UIKit
import XCPlaygro...
Is there a way to detach matplotlib plots so that the computation can continue?
...
print 'yay'
print 'computation continues...'
print 'that rocks.'
print 'Now lets wait for the graph be closed to continue...:'
p.join()
That has the overhead of launching a new process, and is sometimes harder to debug on complex scenarios, so I'd prefer the other solution (using matplotlib's n...
How to set margin of ImageView using code, not xml
I want to add an unknown number of ImageView views to my layout with margin. In XML, I can use layout_margin like this:
...
java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
...rence of the FragmentActivity solved the problem. My code looks as follows now:
public class MyFragmentActivity extends FragmentActivity implements OnFriendAddedListener {
private static WeakReference<MyFragmentActivity> wrActivity = null;
@Override
public void onCreate(Bundle s...