大约有 48,000 项符合查询结果（耗时：0.0761秒） [XML]
Global variables in Java
...class gets unloaded the variables will be undefined null. If you sell your app this will happen sooner or later and you keep looking for error everywhere but not there....
– user387184
Nov 5 '11 at 19:55
...
form_for with nested resources
...s like:
/articles/42
/articles/42/comments/99
routed to controllers at
app/controllers/articles_controller.rb
app/controllers/comments_controller.rb
just as it says at http://guides.rubyonrails.org/routing.html#nested-resources, with no special namespaces.
But partials and forms become tricky...
ExecJS and could not find a JavaScript runtime
...there anyway to have these gems included in the default Gemfile when a new application is created?
– Richard Fawcett
Sep 25 '11 at 16:16
2
...
Safe characters for friendly url [closed]
...aid, do not use it! Here is another weird case on IIS (don't know if this happens on other Web Servers): if it is at the end of your URL you'll most likely get 404 error (it'll try to search for [/pagename]. page)
– nikib3ro
Jun 1 '12 at 19:27
...
Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?
...
Adding an enum class does of course mean that your app contains an extra class, so it's not free, but we have to assume that a developer is only adding enums where they're useful. The only really bad use I've seen of enums was in some harmony code where they really wanted int...
How do I use $scope.$watch and $scope.$apply in AngularJS?
I don't understand how to use $scope.$watch and $scope.$apply . The official documentation isn't helpful.
6 Answers
...
How do I get the directory that a program is running from?
...
Here's code to get the full path to the executing app:
Windows:
int bytes = GetModuleFileName(NULL, pBuf, len);
return bytes ? bytes : -1;
Linux:
int bytes = MIN(readlink("/proc/self/exe", pBuf, len), len - 1);
if(bytes >= 0)
pBuf[bytes] = '\0';
return bytes;
...
React JSX: selecting “selected” on selected option
...nu, I need to set the selected attribute on the option that reflects the application state.
11 Answers
...
What is the difference between ng-if and ng-show/ng-hide
...e ng-hide CSS class is removed from the element causing the element not to appear hidden.
share
|
improve this answer
|
follow
|
...
POSTing a @OneToMany sub-resource association in Spring Data REST
Currently I have a Spring Boot application using Spring Data REST. I have a domain entity Post which has the @OneToMany relationship to another domain entity, Comment . These classes are structured as follows:
...