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Difference between Arrays.asList(array) and new ArrayList(Arrays.asList(array))
...and creates a wrapper that implements List<Integer>, which makes the original array available as a list. Nothing is copied and all, only a single wrapper object is created. Operations on the list wrapper are propagated to the original array. This means that if you shuffle the list wrapper, the...
Should I use != or for not equal in T-SQL?
I have seen SQL that uses both != and <> for not equal . What is the preferred syntax and why?
14 Answers
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Is AngularJS just for single-page applications (SPAs)?
...n application we are creating and are trying to evaluate a tool that will work for us and give us the best platform to move forward.
...
Using ThreadPool.QueueUserWorkItem in ASP.NET in a high traffic scenario
I've always been under the impression that using the ThreadPool for (let's say non-critical) short-lived background tasks was considered best practice, even in ASP.NET, but then I came across this article that seems to suggest otherwise - the argument being that you should leave the ThreadPool to ...
How can I add new keys to a dictionary?
...
@hegash the d[key]=val syntax as it is shorter and can handle any object as key (as long it is hashable), and only sets one value, whereas the .update(key1=val1, key2=val2) is nicer if you want to set multiple values at the same time, as long as the keys are strings...
Using variables inside a bash heredoc
...ecause you've put the delimiter in quotes - the bash manual says:
The format of here-documents is:
<<[-]word
here-document
delimiter
No parameter expansion, command substitution, arithmetic expansion, or
pathname expansion is performed on word. If any c...
Why is a 3-way merge advantageous over a 2-way merge?
Wikipedia says a 3-way merge is less error-prone than a 2-way merge, and often times doesn't need user intervention. Why is this the case?
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Remove multiple whitespaces
...,$row['message']);
You are using \s\s+ which means whitespace(space, tab or newline) followed by one or more whitespace. Which effectively means replace two or more whitespace with a single space.
What you want is replace one or more whitespace with single whitespace, so you can use the pattern ...
What's the difference between String(value) vs value.toString()
...ypes and type conversions so I'm wondering if these 2 methods are the same or if there is some corner case that makes them different?
...
How to call base.base.method()?
...e it's bad practice, but it's still possible (in principle) to do what author wants with:
class SpecialDerived : Derived
{
public override void Say()
{
Console.WriteLine("Called from Special Derived.");
var ptr = typeof(Base).GetMethod("Say").MethodHandle.GetFunctionPointer(...