大约有 21,000 项符合查询结果（耗时：0.0325秒） [XML]
Differences between Oracle JDK and OpenJDK
...
Willi Mentzel
18.6k1212 gold badges7979 silver badges9393 bronze badges
answered Jul 31 '16 at 16:11
Venkateswara RaoVenkateswara R...
How do I install a custom font on an HTML site
I am not using flash or php - and I have been asked to add a custom font to a simple HTML layout. "KG June Bug"
6 Answers
...
What does new self(); mean in PHP?
...s (I've removed all non-necessary code, for this example -- you'll have to add it back to get the singleton behavior)* :
class MyParentClass {
}
class MyChildClass extends MyParentClass {
public static function getInstance() {
return new self();
}
}
$a = MyChildClass::getInstance(...
ruby on rails f.select options with custom attributes
...
Rails CAN add custom attributes to select options, using the existing options_for_select helper. You almost had it right in the code in your question. Using html5 data-attributes:
<%= f.select :country_id, options_for_select(
@...
HTML5 Canvas vs. SVG vs. div
...
SVG would be easier for you, since selection and moving it around is already built in. SVG objects are DOM objects, so they have "click" handlers, etc.
DIVs are okay but clunky and have awful performance loading at large numbers.
Canvas has the best performance hands-down, but you have to implem...
AngularJS- Login and Authentication in each route and controller
...if the user is logged (the isLoggedIn method should handle it). It won't load the requested route if the user is not logged and it will redirect the user to the right page (in your case login).
The loginController should be used in your login page to handle login. It should just interract with the ...
Change the name of the :id parameter in Routing resources for Rails
...
Rails 4 & 5
In Rails 4, the :param option was added, which seems to do exactly what you're looking for. You can take a look at the Rails 3 code compared to the Rails 4 code.
Details
You can easily implement this in your routes.rb file:
# config/routes.rb
resources :p...
Is there a “previous sibling” selector?
...y after) and is a CSS3 selector. + is for next sibling and is CSS2.1.
See Adjacent sibling combinator from Selectors Level 3 and 5.7 Adjacent sibling selectors from Cascading Style Sheets Level 2 Revision 1 (CSS 2.1) Specification.
...
YouTube iframe API: how do I control an iframe player that's already in the HTML?
... be able to control iframe based YouTube players. This players will be already in the HTML, but I want to control them via the JavaScript API.
...
How to use a WSDL
...to consume a Web Service. They sent me the WSDL file.
What should I do to add it to my website and start using it as the proxy.
( If I put it on a Virtual Directory it can be discovered, but does it grant me the connection with the real web service?)
...