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What is the difference between Ruby 1.8 and Ruby 1.9

I'm not clear on the differences between the "current" version of Ruby (1.8) and the "new" version (1.9). Is there an "easy" or a "simple" explanation of the differences and why it is so different? ...
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How to initialize an array's length in JavaScript?

Most of the tutorials that I've read on arrays in JavaScript (including w3schools and devguru ) suggest that you can initialize an array with a certain length by passing an integer to the Array constructor using the var test = new Array(4); syntax. ...
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How do I convert a TimeSpan to a formatted string? [duplicate]

I have two DateTime vars, beginTime and endTime. I have gotten the difference of them by doing the following: 14 Answers ...
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Which one will execute faster, if (flag==0) or if (0==flag)?

Interview question: Which one will execute faster, if (flag==0) or if (0==flag) ? Why? 16 Answers ...
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Why do Lua arrays(tables) start at 1 instead of 0?

I don't understand the rationale behind the decision of this part of Lua. Why does indexing start at 1? I have read (as many others did) this great paper . It seems to me a strange corner of a language that is very pleasant to learn and program. Don't get me wrong, Lua is just great but there has t...
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Remove outline from select box in FF

Is it possible to remove the dotted line surrounding a selected item in a select element? 12 Answers ...
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How to grant remote access to MySQL for a whole subnet?

I can easily grant access to one IP using this code: 7 Answers 7 ...
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Open Redis port for remote connections

I can ping pong Redis on the server: 9 Answers 9 ...
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deleting rows in numpy array

I have an array that might look like this: 6 Answers 6 ...
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Regular expression for matching latitude/longitude coordinates?

I'm trying to create a regular expression for matching latitude/longitude coordinates. For matching a double-precision number I've used (\-?\d+(\.\d+)?) , and tried to combine that into a single expression: ...