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What are MVP and MVC and what is the difference?

When looking beyond the RAD (drag-drop and configure) way of building user interfaces that many tools encourage you are likely to come across three design patterns called Model-View-Controller , Model-View-Presenter and Model-View-ViewModel . My question has three parts to it: ...
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Verify a certificate chain using openssl verify

I'm building a own certificate chain with following componenents: 7 Answers 7 ...
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Run PHP Task Asynchronously

I work on a somewhat large web application, and the backend is mostly in PHP. There are several places in the code where I need to complete some task, but I don't want to make the user wait for the result. For example, when creating a new account, I need to send them a welcome email. But when they h...
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What is dynamic programming? [closed]

What is dynamic programming ? 10 Answers 10 ...
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How to write a:hover in inline CSS?

I have a case where I must write inline CSS code, and I want to apply a hover style on an anchor. 23 Answers ...
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What's an appropriate HTTP status code to return by a REST API service for a validation failure?

I'm currently returning 401 Unauthorized whenever I encounter a validation failure in my Django / Piston based REST API application. Having had a look at the HTTP Status Code Registry I'm not convinced that this is an appropriate code for a validation failure, what do y'all recommend? ...
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How do I create a constant in Python?

Is there a way to declare a constant in Python? In Java we can create constant values in this manner: 41 Answers ...
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Test for equality among all elements of a single vector

I'm trying to test whether all elements of a vector are equal to one another. The solutions I have come up with seem somewhat roundabout, both involving checking length() . ...
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Comparing Java enum members: == or equals()?

I know that Java enums are compiled to classes with private constructors and a bunch of public static members. When comparing two members of a given enum, I've always used .equals() , e.g. ...
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Is it safe to parse a /proc/ file?

I want to parse /proc/net/tcp/ , but is it safe? 7 Answers 7 ...