大约有 42,000 项符合查询结果(耗时:0.0479秒) [XML]

https://stackoverflow.com/ques... 

How to set the id attribute of a HTML element dynamically with angularjs (1.x)?

Provided an HTML element of type div , how to set the value of its id attribute, which is the concatenation of a scope variable and a string ? ...
https://stackoverflow.com/ques... 

Django optional url parameters

...iews.foo), url(r'^project_config/(?P<product>\w+)/(?P<project_id>\w+)/$', views.foo), ) Keep in mind that in your view you'll also need to set a default for the optional URL parameter, or you'll get an error: def foo(request, optional_parameter=''): # Your code goes here ...
https://stackoverflow.com/ques... 

SQL Joins Vs SQL Subqueries (Performance)?

...vary. The speed will depend a lot on indexes (do you have indexes on both ID columns? That will help a lot...) among other things. The only REAL way to tell with 100% certainty which is faster is to turn on performance tracking (IO Statistics is especially useful) and run them both. Make sure to...
https://stackoverflow.com/ques... 

Preventing Laravel adding multiple records to a pivot table

...condition like this one : if (! $cart->items->contains($newItem->id)) { $cart->items()->save($newItem); } Or/and you can add unicity condition in your database, it would throw an exception during an attempt of saving a doublet. You should also take a look at the more straightf...
https://stackoverflow.com/ques... 

Android: Test Push Notification online (Google Cloud Messaging) [closed]

... Found a very easy way to do this. Open http://phpfiddle.org/ Paste following php script in box. In php script set API_ACCESS_KEY, set device ids separated by coma. Press F9 or click Run. Have fun ;) <?php // API access key from Google API's Console define( 'API_ACCE...
https://stackoverflow.com/ques... 

ViewParam vs @ManagedProperty(value = “#{param.id}”)

...ditional <f:event type="preRenderView" listener="#{bean.init}" /> inside the <f:metadata> to do initialization/preloading based on the set values. Since JSF 2.2 you could use <f:viewAction> for that instead. Allows for nested <f:converter> and <f:validator> for more fi...
https://stackoverflow.com/ques... 

JavaScript - onClick to get the ID of the clicked button

How do find the id of the button which is being clicked? 16 Answers 16 ...
https://stackoverflow.com/ques... 

How to create and handle composite primary key in JPA

...contains your two keys, and then have a reference to that class as EmbeddedId in your Entity. You would need the @EmbeddedId and @Embeddable annotations. @Entity public class YourEntity { @EmbeddedId private MyKey myKey; @Column(name = "ColumnA") private String columnA; /** Y...
https://stackoverflow.com/ques... 

Move to another EditText when Soft Keyboard Next is clicked on Android

...haviour of directional navigation by using following XML attributes: android:nextFocusDown="@+id/.." android:nextFocusLeft="@+id/.." android:nextFocusRight="@+id/.." android:nextFocusUp="@+id/.." Besides directional navigation you can use tab navigation. For this you need to use andr...
https://stackoverflow.com/ques... 

How to convert a List into a comma separated string without iterating List explicitly [dupli

... On Android use: android.text.TextUtils.join(",", ids); share | improve this answer | follow ...