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Parsing IPv6 extension headers containing unknown extensions

... you don't know how to interpret. Routers can route such packets, because all they need is the routing header. Deep packet inspection gadgets and suchlike need to know a lot, but then that's their fate anyway. Edited to add: This design means that middleboxes can only change what they know. If a m...
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Is it possible to do start iterating from an element other than the first using foreach?

... Good call. WTB auto-complete (gahh can't remember the real name of it) in stackoverflow ;) – MoarCodePlz Jun 21 '11 at 17:56 ...
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Read a file in Node.js

...leSync--he's in the middle of processing a web request. This answer was totally inappropriate to the question at hand. – Samuel Neff Jun 8 '15 at 13:56 add a comment ...
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Inheriting from a template class in c++

... way you speak about them determines the way to think about them. Specifically, Area is not a template class, but a class template. That is, it is a template from which classes can be generated. Area<int> is such a class (it's not an object, but of course you can create an object from that cl...
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ASP.NET MVC: Unit testing controllers that use UrlHelper

One of my controllers actions, one that is being called in an Ajax request, is returning an URL to the client side so it can do a redirection. I'm using Url.RouteUrl(..) and during my unit tests this fails since the Controller.Url parameter is not pre-filled. ...
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Express-js can't GET my static files, why?

... In case of new install you should verify that your express module is properly installed (expressjs.com/en/starter/installing.html) then you should check the path and your directory name like Giacomo said ;) – Spl2nky ...
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How do you redirect to a page using the POST verb?

When you call RedirectToAction within a controller, it automatically redirects using an HTTP GET. How do I explicitly tell it to use an HTTP POST? ...
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Selecting data frame rows based on partial string match in a column

...matching. Here's an example with the mtcars dataset, where we are matching all rows where the row names includes "Merc": mtcars[grep("Merc", rownames(mtcars)), ] mpg cyl disp hp drat wt qsec vs am gear carb # Merc 240D 24.4 4 146.7 62 3.69 3.19 20.0 1 0 4 2 # Merc 230 ...
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Setting the selected value on a Django forms.ChoiceField

...rying to assign the selected value to a ChoiceField. If you have already called super().__init__ in your Form class, you should update the form.initial dictionary, not the field.initial property. If you study form.initial (e.g. print self.initial after the call to super().__init__), it will contai...
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How do you turn a Mongoose document into a plain object?

...ng is that JSON.parse(JSON.encode(doc)) works and returns an object with all of the correct properties. Is there a better way to do this? ...