reusability

I'm working on some sort of online multiuser editor / coop interface, which will be doing a lot (as in, thousands) of ajax requests during one page lifetime. What would be best: ('best' in terms of stability, compatibility, avoiding trouble) Create one XMLHttpRequest object and reuse that for every HTTP request Create a new XMLHttpRequest object for every HTTP request Manage a dynamic 'pool' of XMLHttpRequest objects, creating a new one when starting a HTTP request and no existing object is available, and tagging a previously created object as 'available' when its last request was completed

I tried to use custom reuse strategy in my angular2 project, but I found it doesn't work with lazy module loading . Anyone who know about this? My project is angular 2.6.4 reuse-strategy.ts import {RouteReuseStrategy, ActivatedRouteSnapshot, DetachedRouteHandle} from "@angular/router"; export class CustomReuseStrategy implements RouteReuseStrategy { handlers: {[key: string]: DetachedRouteHandle} = {}; shouldDetach(route: ActivatedRouteSnapshot): boolean { console.debug('CustomReuseStrategy:shouldDetach', route); return true; } store(route: ActivatedRouteSnapshot, handle: DetachedRouteHandle):

I am having trouble with reuse cells and UICollectionView on iOS 7. My code works fine on iOS 6 but in iOS 7 it does not reuse the cell after calling dequeueReusableCellWithReuseIdentifier (do not call prepareForReuse ). Even this code https://developer.apple.com/library/ios/samplecode/CollectionView-Simple/Introduction/Intro.html#//apple_ref/doc/uid/DTS40012860 does not reuse cell on iOS7 (but works well on iOS6), on every dequeueReusableCellWithReuseIdentifier it creates a new cell and deallocates the old one. Is there some new stuff that prevents cells to be reused? My cells are big enough

My first question so hope it is suitable: Shared interface assembly - I have a 'shared' assembly which has an interface, let's call it IDocRepository . It's marked with [ServiceContract] and there are several [OperationContract] -marked methods. WCF implementation assemblies - I have two WCF service projects, each referencing the shared assembly, each implementing that interface as a WCF service. Consumer assembly - Finally, I have a 'client' project, also referencing the shared assembly, with a reference to each of the two WCF services. However, the service references generated in the

I need to parallelize some tasks in a C++ program and am completely new to parallel programming. I've made some progress through internet searches so far, but am a bit stuck now. I'd like to reuse some threads in a loop, but clearly don't know how to do what I'm trying for. I am acquiring data from two ADC cards on the computer (acquired in parallel), then I need to perform some operations on the collected data (processed in parallel) while collecting the next batch of data. Here is some pseudocode to illustrate //Acquire some data, wait for all the data to be acquired before proceeding std:

Apple's iOS TableView and cell reuse is killing me. I searched and searched and studied, but can't find good docs or good answers. The problem is that when the TableView reuses cells things like Checkmarks (cell accessory) set on a selected Cell are repeated in the cells further down in the table view. I understand that cell reuse is by design, due to memory constraints, but if you have a list with say 50 items, and it starts setting extra checkmarks where they're not wanted, this makes whole endeavor useless. All I want to do is set a checkmark on a cell I've selected. I've tried this using