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Best way to iterate through a Perl array

Which is the best implementation(in terms of speed and memory usage) for iterating through a Perl array? Is there any better way? ( @Array need not be retained). ...
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Check if UIColor is dark or bright?

I need to determine whether a selected UIColor (picked by the user) is dark or bright, so I can change the color of a line of text that sits on top of that color, for better readability. ...
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Placing border inside of div and not on its edge

I have a <div> element and I want to put a border on it. I know I can write style="border: 1px solid black" , but this adds 2px to either side of the div, which is not what I want. ...
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How can I test that a value is “greater than or equal to” in Jasmine?

I want to confirm that a value is a decimal (or 0), so the number should be greater than or equal to zero and less than 1. ...
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How to install a specific version of a ruby gem?

Using the command-line gem tool, how can I install a specific version of a gem? 6 Answers ...
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Using jQuery to center a DIV on the screen

How do I go about setting a <div> in the center of the screen using jQuery? 28 Answers ...
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Google Maps API v3: How do I dynamically change the marker icon?

Using Google Maps API v3, how do I programmatically change the marker icon? 5 Answers ...
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PostgreSQL LIKE query performance variations

I have been seeing quite a large variation in response times regarding LIKE queries to a particular table in my database. Sometimes I will get results within 200-400 ms (very acceptable) but other times it might take as much as 30 seconds to return results. ...
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Javascript add leading zeroes to date

I've created this script to calculate the date for 10 days in advance in the format of dd/mm/yyyy: 24 Answers ...
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MySQL stored procedure vs function, which would I use when?

I'm looking at MySQL stored procedures and function. What is the real difference? 5 Answers ...