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Do sealed classes really offer performance Benefits?
... Release build configuration) emits identical MSIL, which is as follows:
L_0000: newobj instance void <NormalClass or SealedClass>::.ctor()
L_0005: stloc.0
L_0006: ldloc.0
L_0007: ldstr "a string"
L_000c: callvirt instance void <NormalClass or SealedClass>::WriteIt(string)
L_0011: ret...
Getting multiple keys of specified value of a generic Dictionary?
...e, perhaps maintain two dictionary mapping key->value and value->List_of_keys. If you do the latter you will trade storage for look up speed. It wouldn't take much to turn @Cybis example into such a data structure.
s...
ORA-30926: unable to get a stable set of rows in the source tables
...ates in the query specified in USING clause. This probably means that TABLE_A is a parent table and the same ROWID is returned several times.
You could quickly solve the problem by using a DISTINCT in your query (in fact, if 'Y' is a constant value you don't even need to put it in the query).
Assu...
What are the rules for the “…” token in the context of variadic templates?
...rgs...) above!
You can use ... to initialize an array also as:
struct data_info
{
boost::any data;
std::size_t type_size;
};
std::vector<data_info> v{{args, sizeof(T)}...}; //pattern = {args, sizeof(T)}
which is expanded to this:
std::vector<data_info> v
{
{arg0, sizeo...
UILabel text margin [duplicate]
..., intrinsicContentSize property (for Auto layout code) and/or sizeThatFits(_:) method (for Springs & Struts code).
import UIKit
class PaddingLabel: UILabel {
let padding: UIEdgeInsets
// Create a new PaddingLabel instance programamtically with the desired insets
required init(pad...
Python 3 turn range to a list
...
You can just construct a list from the range object:
my_list = list(range(1, 1001))
This is how you do it with generators in python2.x as well. Typically speaking, you probably don't need a list though since you can come by the value of my_list[i] more efficiently (i + 1), and...
Custom thread pool in Java 8 parallel stream
...gt;
// Parallel task here, for example
IntStream.range(1, 1_000_000).parallel()
.filter(PrimesPrint::isPrime)
.boxed().collect(Collectors.toList())
).get();
System.out.println(primes);
} catch (InterruptedException | ExecutionException e) {
...
How to find what code is run by a button or element in Chrome using Developer Tools
...Chrome's console (although any browser with jQuery loaded will work)
Run $._data($(".example").get(0), "events")
Drill down the output to find the desired event handler.
Right-click on "handler" and select "Show function definition"
The code will be shown in the Sources tab
$._data() is just acces...
ASP.NET MVC 3: Override “name” attribute with TextBoxFor
...ame, use Name:
@Html.TextBoxFor(x => x.Data, new { Name = Model.Key + "_Data", id = Model.Key + "_Data" })
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Determine if code is running as part of a unit test
...;/summary>
static class UnitTestDetector
{
private static bool _runningFromNUnit = false;
static UnitTestDetector()
{
foreach (Assembly assem in AppDomain.CurrentDomain.GetAssemblies())
{
// Can't do something like this as it will load the nUnit...