Convert a number string in any base to a decimal number

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Apr 11 ’12

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Convert a number string in any base to a decimal number

As Brich Thompson notes in the comments on “Convert between number bases easily”, you can also convert a number string in any base to a decimal number with the String#to_i method:

"21".to_i     #=> 21 
"21".to_i(8)  #=> 17
"21".to_i(16) #=> 33

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