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Use of def, val, and var in scala
... person method, which returns a new instance of class Person (with age set to 12). It's the same as this:
println(person().age)
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Using a bitmask in C#
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The traditional way to do this is to use the Flags attribute on an enum:
[Flags]
public enum Names
{
None = 0,
Susan = 1,
Bob = 2,
Karen = 4
}
Then you'd check for a particular name as follows:
Names names = Names.Susan | Nam...
Java: how do I get a class literal from a generic type?
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You can't due to type erasure.
Java generics are little more than syntactic sugar for Object casts. To demonstrate:
List<Integer> list1 = new ArrayList<Integer>();
List<String> list2 = (List<String>)list1;
list2.a...
How to check if a string “StartsWith” another string?
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You can use ECMAScript 6's String.prototype.startsWith() method, but it's not yet supported in all browsers. You'll want to use a shim/polyfill to add it on browsers that don't support it. Creating an implementation that complies with all the details laid out in...
Hide div after a few seconds
I was wondering, how in jquery am I able to hide a div after a few seconds? Like Gmail's messages for example.
9 Answers
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Limiting the number of records from mysqldump?
I am trying to load a small sample of records from a large database into a test database.
4 Answers
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How to suppress specific MSBuild warning
Is there any way to disable specific MSBuild warning (e.g. MSB3253) when running MSBuild from command line? My build script calls msbuild.exe much the following way:
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How to unescape HTML character entities in Java?
Basically I would like to decode a given Html document, and replace all special chars, such as "&nbsp;" -> " " , "&gt;" -> ">" .
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The SQL OVER() clause - when and why is it useful?
...a practical example of why windowed aggregates are great. Suppose you need to calculate what percent of a total every value is. Without windowed aggregates you'd have to first derive a list of aggregated values and then join it back to the original rowset, i.e. like this:
SELECT
orig.[Partition],...
In Eclipse, what can cause Package Explorer “red-x” error-icon when all Java sources compile without
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yeah, this happens sometimes for no apparent reason. You can go to the "Problems"-Tab (right next to console output) and see the error message, so maybe you can narrow it down that way.
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