大约有 20,000 项符合查询结果(耗时:0.0462秒) [XML]
Detect permission of camera in iOS
...default:
completion?(.unknown)
}
}
}
And then in order to use it you do
AVCaptureDevice.authorizeVideo(completion: { (status) in
//Your work here
})
share
|
improve th...
SecurityError: Blocked a frame with origin from accessing a cross-origin frame
...e/other.html -> Success
http://www.example.com/dir/inner/another.php -> Success
http://www.example.com:80 -> Success (default port for HTTP)
http://www.example.com:2251 -> Failure: different port
http://data.example.com/dir/other.html -...
ssh: connect to host github.com port 22: Connection timed out
...
I had to remove the .git from the url in order for this to work for me. url = github.com/username/repo
– Jesse Buss
Dec 21 '17 at 15:38
...
Adjust width of input field to its input
...my code and it is not working. Is there any other way in HTML, JavaScript, PHP or CSS to set minimum width?
26 Answers
...
Django class-based view: How do I pass additional parameters to the as_view method?
...
It's worth noting you don't need to override get_object() in order to look up an object based on a slug passed as a keyword arg - you can use the attributes of a SingleObjectMixin https://docs.djangoproject.com/en/1.5/ref/class-based-views/mixins-single-object/#singleobjectmixin
# vi...
Given a number, find the next higher number which has the exact same set of digits as the original n
...ediately left of digit-x. Finally, sort the remaining digits in ascending order - since they were already in descending order, all you need to do is reverse them (save for digit-x, which can be placed in the correct place in O(n)).
An example will make this more clear:
123456784987654321
start w...
How to sort a HashSet?
...
A HashSet does not guarantee any order of its elements. If you need this guarantee, consider using a TreeSet to hold your elements.
However if you just need your elements sorted for this one occurrence, then just temporarily create a List and sort that:
Se...
Why does this Java program terminate despite that apparently it shouldn't (and didn't)?
...ur object is not safely published those 4 write operations can be freely reordered by the compiler / JVM.
So from the perspective of the reading thread, it is a legal execution to read x with its new value but y with its default value of 0 for example. By the time you reach the println statement (w...
Should I use .done() and .fail() for new jQuery AJAX code instead of success and error
... return $.ajax({
type: "POST",
url: "//exapmple.com//ajax.php",
data: settings,
cache : false
});
}
/* .... Somewhere in your code ..... */
call_ajax({
/* ... */
id : 10,
option : 'edit_user'
change : {
name : 'John Doe'
}
/* ....
How to concatenate strings of a string field in a PostgreSQL 'group by' query?
...e
GROUP BY company_id;
Postgres 9.0 also added the ability to specify an ORDER BY clause in any aggregate expression; otherwise, the order is undefined. So you can now write:
SELECT company_id, string_agg(employee, ', ' ORDER BY employee)
FROM mytable
GROUP BY company_id;
Or indeed:
SELECT str...