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Simple (non-secure) hash function for JavaScript? [duplicate]

Can anyone suggest a simple (i.e. tens of lines of code, not hundreds of lines) hash function written in (browser-compatible) JavaScript? Ideally I'd like something that, when passed a string as input, produces something similar to the 32 character hexadecimal string that's the typical output of MD...
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Tricks to manage the available memory in an R session

What tricks do people use to manage the available memory of an interactive R session? I use the functions below [based on postings by Petr Pikal and David Hinds to the r-help list in 2004] to list (and/or sort) the largest objects and to occassionally rm() some of them. But by far the most effect...
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Removing empty lines in Notepad++

How can I replace empty lines in Notepad++? I tried a find and replace with the empty lines in the find, and nothing in the replace, but it did not work; it probably needs regex. ...
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How to convert R Markdown to PDF?

I've previously asked about the commands for converting R Markdown to HTML . 8 Answers ...
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How to create a drop-down list?

How can I create a drop-down list? I've tried a ScrollView but it's not exactly what I need. 9 Answers ...
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How to compare two colors for similarity/difference

I want to design a program that can help me assess between 5 pre-defined colors which one is more similar to a variable color, and with what percentage. The thing is that I don't know how to do that manually step by step. So it is even more difficult to think of a program. ...
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What does preceding a string literal with “r” mean? [duplicate]

I first saw it used in building regular expressions across multiple lines as a method argument to re.compile() , so I assumed that r stands for RegEx. ...
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How to upgrade R in ubuntu? [closed]

I have R 2.12.1 installed in my ubuntu, and I'd like upgrade to lastest version 2.15, how can achieve that ? Thanks 1 Answ...
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How to select a CRAN mirror in R

I'm trying to install a package through the R prompt by doing the following: 11 Answers ...
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Get type of all variables

In R, I'd like to retrieve a list of global variables at the end of my script and iterate over them. Here is my code 6 Answ...