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Why is it said that “HTTP is a stateless protocol”?

...ocket. That is solely a performance thing, intended to minimize the time/bandwidth that'd otherwise be spent reestablishing a connection for each request. As far as HTTP is concerned, they are all still separate requests and must contain enough information on their own to fulfill the request. Tha...
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Relationship between SciPy and NumPy

...numpy as _num from numpy import oldnumeric from numpy import * from numpy.random import rand, randn from numpy.fft import fft, ifft from numpy.lib.scimath import * The log10 function you get in scipy comes from numpy.lib.scimath. Looking at that code, it says: """ Wrapper functions to more user-f...
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Twitter Bootstrap 3: how to use media queries?

...ecause "extra small" is the default. I.e. you would first code the XS size and then have these media overrides afterwards. @media(min-width:576px){} @media(min-width:768px){} @media(min-width:992px){} @media(min-width:1200px){} Update 2019-02-11: BS3 info is still accurate as of version 3.4.0, up...
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Why am I getting this error: No mapping specified for the following EntitySet/AssociationSet - Entit

... state that the SSDL does not exist. You can drag entities, associate them and so forth and yet, if you take a look at the SSDL on the EDMX file, you will see that none of the entities have an associated storage table in the SSDL. That changes when you click the Generate Database From Model context...
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How to avoid “if” chains?

... You can use an && (logic AND): if (executeStepA() && executeStepB() && executeStepC()){ ... } executeThisFunctionInAnyCase(); this will satisfy both of your requirements: executeStep<X>() should evaluate only if the pre...
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CSS background image alt attribute

...t, this is often recommended where presenting visual icons is more compact and user-friendly than an equivalent list of text blurbs. Any use of image sprites can benefit from this approach. It is quite common for hotel listings icons to display amenities. Imagine a page which listed 50 hotel and ea...
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Finding quaternion representing the rotation from one vector to another

I have two vectors u and v. Is there a way of finding a quaternion representing the rotation from u to v? 7 Answers ...
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What are the implications of using “!important” in CSS? [duplicate]

I've been working on a website for a few months, and a lot of times when I've been trying to edit something, I have to use !important , for example : ...
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Why are there two kinds of functions in Elixir?

I'm learning Elixir and wonder why it has two types of function definitions: 8 Answers ...
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Modelling an elevator using Object-Oriented Analysis and Design [closed]

There are a set of questions that seem to be commonly-used in interviews and classes when it comes to object-oriented design and analysis. This is one of them; unfortunately, my OOP professor in college never actually gave an answer to it, and so I've been wondering. ...