大约有 38,000 项符合查询结果（耗时：0.0404秒） [XML]
Detect If Browser Tab Has Focus
...
Important Edit: This answer is outdated. Since writing it, the Visibility API (mdn, example, spec) has been introduced. It is the better way to solve this problem.
var focused = true;
window.onfocus = function() {
focused = true;
};
window.onblur = function() {
focused = false;
};
AFA...
Android studio - Failed to find target android-18
...Go to Tools > Android > SDK Manager and check to see if Android 4.3 (API 18) is installed.
share
|
improve this answer
|
follow
|
...
How do I check how many options there are in a dropdown menu?
...
This assumes your <select> list has an ID of mySelectList.
http://api.jquery.com/length/
http://api.jquery.com/children/
http://api.jquery.com/child-selector/
share
|
improve this answer
...
Why is a combiner needed for reduce method that converts type in java 8
...
@Zordid the Streams API doesn't include an option to reduce type T to a U without passing a combiner.
– Eran
Aug 28 '18 at 16:06
...
No 'Access-Control-Allow-Origin' - Node / Apache Port Issue
i've created a small API using Node/Express and trying to pull data using Angularjs but as my html page is running under apache on localhost:8888 and node API is listen on port 3000, i am getting the No 'Access-Control-Allow-Origin'. I tried using node-http-proxy and Vhosts Apache but not having ...
jQuery event handlers always execute in order they were bound - any way around this? [duplicate]
...n 1.8. Now you know why it is such a bad idea to mess around with internal APIs :)
The new internal API to access to events for a DOM object is available through the global jQuery object, and not tied to each instance, and it takes a DOM element as the first parameter, and a key ("events" for us) a...
C++ valarray vs. vector
... The syntax is different, but I wouldn't call the difference "sugar." The API is weird. The section on std::valarrays in The C++ Programming Language mentions this unusual API and the fact that, since std::valarrays are expected to be highly optimized, any error messages you get while using them w...
What is the proper way to re-attach detached objects in Hibernate?
...t you are locking, but not locking,
is the most counterintuitive piece of API design I've ever seen.
So you are stuck.
There's an detach() method, but no attach() or reattach().
An obvious step in the object lifecycle is not available to you.
Judging by the number of similar questions about JPA,
...
Scala: What is a TypeTag and how do I use it?
...h are both much simpler to use and well integrated into the new Reflection API. With them we can solve the problem above about path-dependent-types elegantly:
scala> def m(f: Foo)(b: f.Bar)(implicit ev: TypeTag[f.Bar]) = ev
m: (f: Foo)(b: f.Bar)(implicit ev: reflect.runtime.universe.TypeTag[f.Ba...
What's the difference between Require.js and simply creating a element in the DOM? [closed]
...reasons why using RequireJS makes sense:
Managing your own dependencies rapidly falls apart for sizable projects.
You can have as many small files as you want, and don't have to worry about keeping track of dependencies or load order.
RequireJS makes it possible to write an entire, modular app wit...