I have a question regarding deferred execution and the disposing of data. Consider the following example: private IEnumerable<string> ParseFile(string fileName) { using(StreamReader sr = n...

I have this function to repeat a sequence: public static List<T> Repeat<T>(this IEnumerable<T> lst, int count) { if (count < 0) throw new ArgumentOutOfRangeException("count"...

I have a function that accepts an Enumerable. I need to ensure that the enumerator is evaluated, but I'd rather not create a copy of it (e.g. via ToList() or ToArray()) if it is all ready in a List...

I discovered by experimenting that creating a timer with a duration of 0 allows me to defer work into the event queue. I really like this feature, because it allows avoiding a lot of nasty reentran...

Given a very basic LINQ that is returned to a MVC view, at what exact point does the deferred execution fire? In the controller: public ActionResult Index() { var model = _fooService.GetAll(); ...

After running this code: var input = new List<T>( ... ); var result = input.Select( t => new U(t) ); U first1 = null; foreach ( U u1 in result ) if ( first1 == null ) first1 = u1; U f...

In a loop, I am trying to defer the comparison the two value()s of two Nodes to a later time. class Node(): def __init__(self, v): self.v = v def value(self): return self.v nodes = [Nod...

I'm working on a project that uses the new Web API and I noticed somebody is returning an IQueryable<T> from a Get method. My understanding is that IQueryable is useful for improving perform...

I am trying to implement the jQuery Deferred.pipe() method for the following scenario: Add a user in DB via $.ajax() Get response whether user was added correctly or not. If successfully added, g...

I have a TabLayout panel with 2 tabs. I would like to programmatically select the 2nd tab and then scroll to a particular element within the tab. This is how my code looks like: public void scroll...

I have been doing some web application programming using GWT and have been confused by the term "browser event loop". I have encountered situations where I need to execute deferred commands and "d...

Today I read about the defer statement in the Go language: A defer statement pushes a function call onto a list. The list of saved calls is executed after the surrounding function returns. De...

I'm debugging in VS2010, and I want to inspect a string value but all I can get the debugger to show me (through watches, hovering, locals, etc.) is: "System.Linq.Enumerable+<TakeIterator>d_...

What is the difference between defer.execute() and threads.deferToThread() in twisted? Both take the same arguments - a function, and parameters to call it with - and return a deferred which will b...

I have what could be seen as a bizarre hybrid of IQueryable<T> and IList<T> collections of domain objects passed up my application stack. I'm trying to maintain as much of the 'late que...

I have a normal Django site running. In addition, there is another twisted process, which listens for Jabber presence notifications and updates the Django DB using Django's ORM. So far it works as...

Suppose I have an IQueryable<T> expression that I'd like to encapsulate the definition of, store it and reuse it or embed it in a larger query later. For example: IQueryable<Foo> myQue...

How could I implement my own deferred execution mechanism in C#? So for instance I have: string x = DoFoo(); Is it possible to perform some magic so that DoFoo does not execute until I "use" x?...