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SQL RANK() versus ROW_NUMBER()
...fused about the differences between these. Running the following SQL gets me two idential result sets. Can someone please explain the differences?
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Removing multiple keys from a dictionary safely
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How to use JavaScript regex over multiple lines?
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[.\n] does not work because . has no special meaning inside of [], it just means a literal .. (.|\n) would be a way to specify "any character, including a newline". If you want to match all newlines, you would need to add \r as well to include Windows and classic Mac OS...
How do I create a Bash alias?
I'm on OSX and I need to put something like this, alias blah="/usr/bin/blah" in a config file but I don't know where the config file is.
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Javascript AES encryption [closed]
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JSAES is a powerful implementation of AES in JavaScript.
http://point-at-infinity.org/jsaes/
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Can you grab or delete between parentheses in vi/vim?
... flag.
By default, "item" includes brackets, braces, parens, C-style comments and various precompiler statements (#ifdef, etc.).
There is a plugin for "extended % matching" that you can find on the Vim homepage.
You can read the documentation on % and related motion commands by entering :help v...
Pure virtual function with implementation
My basic understanding is that there is no implementation for a pure virtual function, however, I was told there might be implementation for pure virtual function.
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How do I check if a number evaluates to infinity?
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@Eli: The global Infinity property isn't read-only which means that it can be redefined: For example, var x = 42; Infinity = 42; alert(x === Infinity); displays "true". (Admittedly that's an obscure case, and anyone who decides to redefine Infinity, NaN etc should expect odd things...
Test for equality among all elements of a single vector
I'm trying to test whether all elements of a vector are equal to one another. The solutions I have come up with seem somewhat roundabout, both involving checking length() .
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change type of input field with jQuery
...ry. Using the following straight DOM code works just fine:
var pass = document.createElement('input');
pass.type = 'password';
document.body.appendChild(pass);
pass.type = 'text';
pass.value = 'Password';
Edit 3: Straight from the jQuery source, this seems to be related to IE (and could either be...