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convert between characters and values (See related posts)

// character to ASCII value: use ?
?a     # => 97
?\n    # => 10


// string to integer: use []
'a'[0]        # => 97
'hallo'[1]    # => 97


// integer / number to character: use .chr
97.chr     # => "a"
10.chr     # => "\n"


//more info: "Ruby Cookbook", O'Reilly
to ruby rails integer character ascii value by ovhaag on Fri May 18 11:34:49 -0400 2007

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