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iOS 7's blurred overlay effect using CSS?
...vas for rendering document as an image.
The image is converted to data-url string and it is painted as the popup's background-image.
Popup's bg is blurred by -webkit-filter:blur
Append the popup into document.
While you're dragging the popup, it changes its own background-position.
...
In what order do static/instance initializer blocks in Java run?
...("Static block called");
}
}
class Test {
public static void main (String [] args) {
system.out.println(Sub.i);
}
}
The above code outputs 10
Update from an "editor"
The technical explanation for this is in JLS 12.4.1
"A reference to a static field (§8.3.1.1) causes i...
Rails - Nested includes on Active Records?
... I think you mean as_json -- otherwise this renders the JSON string.
– Meekohi
Apr 5 '17 at 15:48
add a comment
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BigDecimal setScale and round
...of your BigDecimal getting set? How are you outputting the value (using a String.format() might hide significant digits)?
– dale peters
Oct 25 '16 at 14:58
...
Is there a destructor for Java?
... System.out.println("closing...");
}
public static void main(String[] args) {
try (Closeable c = new Closeable()) {
System.out.println("trying...");
throw new Exception("throwing...");
}
catch (Exception e) {
System.out.prin...
What is the difference between “instantiated” and “initialized”?
...are value types. In contrast, any class you create is a reference type. C# strings are also a reference type. Most things in the .NET framework are reference types.
Parts of a Variable
There is the variable name and it's value. Two parts.
The variable's name is what you declare it to be. The valu...
Java and SQLite [closed]
...mport java.sql.Statement;
public class Test {
public static void main(String[] args) throws Exception {
Class.forName("org.sqlite.JDBC");
Connection conn = DriverManager.getConnection("jdbc:sqlite:test.db");
Statement stat = conn.createStatement();
stat.executeUp...
What is the Oracle equivalent of SQL Server's IsNull() function?
...C> COALESCE-- this same syntax works on Oracle. If your data has empty strings instead of NULLS you might need something like this: COALESCE(TRIM(Tbl.myField1), TRIM(Tbl.myField2)) AS "myNewField".
– SherlockSpreadsheets
May 1 '19 at 16:33
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What is the difference between t.belongs_to and t.references in rails?
...
column("#{col}_id", :integer, options)
column("#{col}_type", :string, polymorphic.is_a?(Hash) ? polymorphic : options) unless polymorphic.nil?
end
end
alias :belongs_to :references
This is just a way of making your code more readable -- it's nice to be able to put belongs_to i...
Outputting data from unit test in python
...u might deal with more complex data, that can't easily be represented as a string.
14 Answers
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