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MySQL pagination without double-querying?

I was wondering if there was a way to get the number of results from a MySQL query, and at the same time limit the results. ...
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@import vs #import - iOS 7

I am playing around with some of the new iOS 7 features and working with some of the Image Effects as discussed in the WWDC video "Implementing Engaging UI on iOS". For producing a blur effect within the source code for the session, UIImage was extended via a category which imports UIKit like so: ...
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Populating a database in a Laravel migration file

I'm just learning Laravel, and have a working migration file creating a users table. I am trying to populate a user record as part of the migration: ...
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UICollectionView inside a UITableViewCell — dynamic height?

One of our application screens requires us to place a UICollectionView inside of a UITableViewCell . This UICollectionView will have a dynamic number of items, resulting in a height which must be calculated dynamically as well. However, I am running into problems trying to calculate the heigh...
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Shell script - remove first and last quote (") from a variable

Below is the snippet of a shell script from a larger script. It removes the quotes from the string that is held by a variable. I am doing it using sed, but is it efficient? If not, then what is the efficient way? ...
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Class.forName() vs ClassLoader.loadClass() - which to use for dynamic loading? [duplicate]

When dynamically loading a class, when is it appropriate to use 6 Answers 6 ...
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Convert PDF to clean SVG? [closed]

I'm attempting to convert a PDF to SVG. However, the one I am using currently maps a path for every letter in every piece of text, meaning if I change the text in its source file, it looks ugly. ...
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Is it faster to count down than it is to count up?

Our computer science teacher once said that for some reason it is more efficient to count down than to count up. For example if you need to use a FOR loop and the loop index is not used somewhere (like printing a line of N * to the screen) I mean that code like this: ...
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Passing a function with parameters as a parameter?

Is it possible to pass a javascript function with parameters as a parameter? 7 Answers ...
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What is the difference between HTTP status code 200 (cache) vs status code 304?

I'm using the Google "Page Speed" plug-in for Firefox to access my web site. 5 Answers ...