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Performance of Arrays vs. Lists

Say you need to have a list/array of integers which you need iterate frequently, and I mean extremely often. The reasons may vary, but say it's in the heart of the inner most loop of a high volume processing. ...
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How to get box-shadow on left & right sides only

Any way to get box-shadow on left & right (horizontal?) sides only with no hacks or images. I am using: 16 Answers ...
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What are best practices for validating email addresses on iOS 2.0

What is the cleanest way to validate an email address that a user enters on iOS 2.0? 13 Answers ...
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Further understanding setRetainInstance(true)

What exactly happens when you call setRetainInstance(true) on a Fragment ? The documentation is virtually non-existent and this seems like a very important function. Specifically I want to know how much of this sequence (that I made up) is true: ...
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Remove an element from a Bash array

I need to remove an element from an array in bash shell. Generally I'd simply do: 20 Answers ...
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.NET String.Format() to add commas in thousands place for a number

I want to add a comma in the thousands place for a number. 21 Answers 21 ...
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How to host a Node.Js application in shared hosting [closed]

How to host a Node.Js application in a shared hosting 5 Answers 5 ...
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jQuery: How can i create a simple overlay?

How can I create a really basic overlay in jQuery without UI? 7 Answers 7 ...
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How does the socket API accept() function work?

The socket API is the de-facto standard for TCP/IP and UDP/IP communications (that is, networking code as we know it). However, one of its core functions, accept() is a bit magical. ...
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Is R's apply family more than syntactic sugar?

...regarding execution time and / or memory. 5 Answers 5 ...