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Converting an integer to a hexadecimal string in Ruby
Is there a built in way to convert an integer in Ruby into its hexadecimal equivalent?
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A regex to match a substring that isn't followed by a certain other substring
I need a regex that will match blahfooblah but not blahfoobarblah
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Automatically plot different colored lines
I'm trying to plot several kernel density estimations on the same graph, and I want them to all be different colors. I have a kludged solution using a string 'rgbcmyk' and stepping through it for each separate plot, but I start having duplicates after 7 iterations. Is there an easier/more efficien...
Diff output from two programs without temporary files
Say I have too programs a and b that I can run with ./a and ./b .
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How to prevent page scrolling when scrolling a DIV element?
I have reviewed and tested the various functions for preventing the body ability to scroll whilst inside a div and have combined a function that should work.
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How to remove last n characters from every element in the R vector
I am very new to R, and I could not find a simple example online of how to remove the last n characters from every element of a vector (array?)
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Most efficient way to remove special characters from string
I want to remove all special characters from a string. Allowed characters are A-Z (uppercase or lowercase), numbers (0-9), underscore (_), or the dot sign (.).
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Is it better to reuse a StringBuilder in a loop?
I've a performance related question regarding use of StringBuilder.
In a very long loop I'm manipulating a StringBuilder and passing it to another method like this:
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Find the host name and port using PSQL commands
I have PSQL running, and am trying to get a perl application connecting to the database. Is there a command to find the current port and host that the database is running on?
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How to strike through obliquely with css
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