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When can I use a forward declaration?
...he compiler's position: when you forward declare a type, all the compiler knows is that this type exists; it knows nothing about its size, members, or methods. This is why it's called an incomplete type. Therefore, you cannot use the type to declare a member, or a base class, since the compiler woul...
How to get a random value from dictionary in python
...DIT: The question was changed a couple years after the original post, and now asks for a pair, rather than a single item. The final line should now be:
country, capital = random.choice(list(d.items()))
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JavaScript blob filename without link
...actually mount the a tag to the body in order for this to work (tried just now in Chrome)
– beyond-code
Aug 12 '19 at 10:37
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What is the `sensor` parameter for in the Google Places API?
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Edit: The sensor parameter is no longer required, and will now be ignored if it's used.
The parameter doesn't impact the results. It's a parameter that Google is required to collect for Google's data providers who charge differently based on whether the request uses a sensor or not....
Are custom elements valid HTML5?
...mitted in HTML5. This confirms Alochi's circular argument observation. 2) Nowhere does the spec say that custom elements are not permitted.
– d13
Mar 24 '12 at 9:59
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Why call git branch --unset-upstream to fixup?
... version: remote-tracking branch origin/master used to exist, but does not now, so local branch source is tracking something that does not exist, which is suspicious at best—it means a different Git feature is unable to do anything for you—and Git is warning you about it. You have been getting ...
What does mysql error 1025 (HY000): Error on rename of './foo' (errorno: 150) mean?
..._id) REFERENCES
country (id) ON DELETE NO
ACTION ON UPDATE NO ACTION
Now simply issue an:
alter table region drop foreign key
region_ibfk_1;
And finally an:
alter table region drop column
country_id;
And you are good to go!
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Xcode iOS 8 Keyboard types not supported
I have a UITextField Ctrl-dragged as an @Outlet in my .swift class.
Now in viewDidLoad i'm using this code
10 Answe...
How do I grep for all non-ASCII characters?
... no longer supports PCRE ("Perl-compatible regular expressions") as Darwin now uses BSD grep instead of GNU grep. An alternative to installing the dupes library is to install pcre instead: brew install pcre... as part of this, you will get the pcregrep utility, which you can use as follows: pcregrep...
View not attached to window manager crash
... the Async task, the async task runs in the background. that is desirable. Now, this Async task has a progress dialog which is attached to the Activity, if you ask how to see the code:
pDialog = new ProgressDialog(CLASS.this);
You are passing the Class.this as context to the argument. So the Prog...