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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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Boolean operators && and ||

According to the R language definition , the difference between & and && (correspondingly | and || ) is that the former is vectorized while the latter is not. ...
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What is the difference between active and passive FTP?

Can someone tell me what is the difference between active and passive FTP? Which one is preferable? 5 Answers ...
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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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INNER JOIN vs LEFT JOIN performance in SQL Server

I've created SQL command that uses INNER JOIN on 9 tables, anyway this command takes a very long time (more than five minutes). So my folk suggested me to change INNER JOIN to LEFT JOIN because the performance of LEFT JOIN is better, despite what I know. After I changed it, the speed of query got si...
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Why is i++ not atomic?

...crement operation atomic; it involves synchronization at both the software and hardware levels that need not be present in an ordinary increment. You could make the argument that i++ should have been designed and documented as specifically performing an atomic increment, so that a non-atomic increm...
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How to fix corrupted git repository?

...loning my repository which I keep on my Ubuntu one folder to a new machine and I got this: 14 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. ...
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Find nearest latitude/longitude with an SQL query

I have latitude and longitude and I want to pull the record from the database, which has nearest latitude and longitude by the distance, if that distance gets longer than specified one, then don't retrieve it. ...
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How do I set a background-color for the width of text, not the width of the entire element, using CS

...ne element, such as a <span>. <h1><span>The Last Will and Testament of Eric Jones</span></h1> And then apply the background color on the inline element. h1 { text-align: center; } h1 span { background-color: green; } An inline element is as big as its...