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Java: is there a map function?
...a function in the JDK as of java 6.
Guava has a Function interface though and the
Collections2.transform(Collection<E>, Function<E,E2>)
method provides the functionality you require.
Example:
// example, converts a collection of integers to their
// hexadecimal string representations
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Filling a DataSet or DataTable from a LINQ query result set
... it be of .NET 4.0; it has been restricted to IEnumerable<DataRows> and does not work for IEnumerable<T> -- bit.ly/dL0G5
– motto
Feb 2 '10 at 22:00
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What is the curiously recurring template pattern (CRTP)?
...ts specialization for any type X will be inherited from singleton<X> and thus will have all its (public, protected) members accessible, including the GetInstance! There are other useful uses of CRTP. For example, if you want to count all instances that currently exist for your class, but want ...
Which selector do I need to select an option by its text?
...xt="B"]').val();
Demo fiddle
This would give you the option with text B and not the ones which has text that contains B. Hope this helps
For recent versions of jQuery the above does not work. As commented by Quandary below, this is what works for jQuery 1.9.1:
$('#test option').filter(function ...
Python Flask Intentional Empty Response
... similar) with certain properties so that it doesn't render the page again and doesn't do anything else either. I am trying to run a code on the server without generating any output
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Hibernate: “Field 'id' doesn't have a default value”
... explanation, try recreating the database (or at least creating a new one) and scaffolding it with SchemaExport.
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AngularJS : Prevent error $digest already in progress when calling $scope.$apply()
I'm finding that I need to update my page to my scope manually more and more since building an application in angular.
28 A...
How to create an HTML button that acts like a link?
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Simple and nice. A fine solution. Add display: inline to the form to keep the button in the flow.
– Pekka
May 25 '10 at 16:44
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How do I replace the *first instance* of a string in .NET?
... since it's utilizing a full featured parser where my method does one find and three string concatenations.
EDIT2: If this is a common task, you might want to make the method an extension method:
public static class StringExtension
{
public static string ReplaceFirst(this string text, string sea...
How to sort a HashSet?
...ements sorted for this one occurrence, then just temporarily create a List and sort that:
Set<?> yourHashSet = new HashSet<>();
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List<?> sortedList = new ArrayList<>(yourHashSet);
Collections.sort(sortedList);
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