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fastest MD5 Implementation in JavaScript

... I've heard Joseph's Myers implementation is quite fast. Additionally, he has a lengthy article on Javascript optimization describing what he learned while writing his implementation. It's a good read for anyone interested in performant javascript. http://www.webreferenc...
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Redis: possible to expire an element in an array or sorted set?

Is it currently only possible to expire an entire key/value pair? What if I want to add values to a List type structure and have them get auto removed 1 hour after insertion. Is that currently possible, or would it require running a cron job to do the purging manually? ...
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How to initialize array to 0 in C?

... Global variables and static variables are automatically initialized to zero. If you have simply char ZEROARRAY[1024]; at global scope it will be all zeros at runtime. But actually there is a shorthand syntax if you had a local array. If an array is partially initialized, elements...
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Remove the cell highlight color of UITableView

I want to remove the default blue color of uitableview cell selection. I don't want any selection color there. I have not created a custom cell class. I'm customizing the cell by adding labels and buttons over it. I tried doing: ...
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How to check identical array in most efficient way? [duplicate]

... So, what's wrong with checking each element iteratively? function arraysEqual(arr1, arr2) { if(arr1.length !== arr2.length) return false; for(var i = arr1.length; i--;) { if(arr1[i] !== arr2[i]) return fals...
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Converting string to numeric [duplicate]

... I suspect you are having a problem with factors. For example, > x = factor(4:8) > x [1] 4 5 6 7 8 Levels: 4 5 6 7 8 > as.numeric(x) [1] 1 2 3 4 5 > as.numeric(as.character(x)) [1] 4 5 6 7 8 Some comments: You mention that your vector contains ...
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How to format code in Xcode? [duplicate]

I wonder how can I format my code to align it neatly? Does it have a feature similar to Eclipse's ctrl shift f ? 4 Answers...
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What's the purpose of starting semi colon at beginning of JavaScript? [duplicate]

I have noticed a lot of jQuery plugins start with 2 Answers 2 ...
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Why don't :before and :after pseudo elements work with `img` elements? [duplicate]

I am trying to use a :before pseudo element with an img element. 3 Answers 3 ...
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Remove last commit from remote git repository [duplicate]

How can I remove the last commit from a remote GIT repository such as I don't see it any more in the log? 2 Answers ...