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Rails: around_* callbacks
I have read the documentation at http://api.rubyonrails.org/classes/ActiveRecord/Callbacks.html , but don't understand when the around_* callbacks are triggered in relation to before_* and after_* .
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Appending HTML string to the DOM
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@Šime Working with the DOM API always feels like a hack :P Would you prefer to unserialise the string without innerHTML?
– alex
Sep 6 '11 at 22:55
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Conversion from Long to Double in Java
... This does something else, see the jdoc (docs.oracle.com/javase/6/docs/api/java/lang/…)
– Jiri Kremser
May 28 '13 at 15:59
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Changing position of the Dialog on screen android
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'FILL_PARENT' is deprecated. I am on API 21. As by Developer Reference
– fWd82
Sep 27 '16 at 11:28
1
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Why is String immutable in Java?
...d, immutability of String only means you cannot change it using its public API. You can in fact bypass the normal API using reflection. See the answer here.
In your example, if String was mutable, then consider the following example:
String a="stack";
System.out.println(a);//prints stack
a.s...
Set NOW() as Default Value for datetime datatype?
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This solution will have some apis crazy with "OMG its a ZERO date! What an HERESY! We can't convert 'this' to a java.lang.Date/System.DateTime! OMG! -crashes-".
– Felype
May 5 '15 at 18:19
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Unexpected character encountered while parsing value
...t _client = new HttpClient();
static async Task<T> GetDataObjectFromAPI<T>(string apiUrl)
{
using (var stream = await _client.GetStreamAsync(apiUrl).ConfigureAwait(false))
using (var reader = new StreamReader(stream))
using (var json = new JsonTextReader(reader))
{
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Java: difference between strong/soft/weak/phantom reference
...h references are cleared or themselves become unreachable." source: Java8 API Docs PhantomReference
– theRiley
Aug 28 at 19:17
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jQuery get the location of an element relative to window
...order-radius: 2px;
padding: 5px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="log"></div>
<div id="element">Hello
<hr>World</div>
<div id="scroll">Scroll Down</div>
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Check for changes to an SQL Server table?
...application vendor that does make the database?
They could implement an API that provides a mechanism for notifying accessory apps that data has changed. It could be as simple as writing to a notification table that lists what table and which row were modified. That could be implemented through...