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Preloading images with JavaScript

Is the function I wrote below enough to preload images in most, if not all, browsers commonly used today? 14 Answers ...
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Regex empty string or email

I found a lot of Regex email validation in SO but I did not find any that will accept an empty string. Is this possible through Regex only? Accepting either empty string or email only? I want to have this on Regex only. ...
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Change all files and folders permissions of a directory to 644/755

How would I change all files to 644 and all folders to 755 using chmod from the linux command prompt? (Terminal) 8 Answ...
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In Python, how do I index a list with another list?

I would like to index a list with another list like this 7 Answers 7 ...
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What's the most efficient test of whether a PHP string ends with another string?

The standard PHP way to test whether a string $str ends with a substring $test is: 13 Answers ...
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Convert floating point number to a certain precision, and then copy to string

I have a floating point number, say 135.12345678910 . I want to concatenate that value to a string, but only want 135.123456789 . With print, I can easily do this by doing something like: ...
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What does send() do in Ruby?

... send sends a message to an object instance and its ancestors in class hierarchy until some method reacts (because its name matches the first argument). Practically speaking, those lines are equivalent: 1.send '+', 2 1.+(2) 1 + 2 Note that send bypasses vi...
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How to remove a package in sublime text 2

I would like to remove and/or deactivate the Emmet package in Sublime Text 2. 7 Answers ...
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How to restart Activity in Android

How do I restart an Android Activity ? I tried the following, but the Activity simply quits. 21 Answers ...
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Detecting if an NSString contains…?

How can I detect if a string contains a certain word? For example, I have a string below which reads: 7 Answers ...