Total unicode characters in Ruby

Question

I have the following method that takes a string and converts the unicode character to an int.

def uni_total(string) string.ord end

This will total a character. If I wanted to total all of the characters in a string I have tried the following method.

def uni_total(string) string.ord each |item| return item++ end end

When I run it give me the following error message 'unexpected tIDENTIFIER, expecting keyword_end return item++ What is the best way to get around this? Any help would be appreciated. Regards

You should check out this question about ++, the Ruby docs - String#codepoints in particular and also this question to learn how to get the sum of an integer array. Then you end up with a short uni_total implementation: string.codepoints.reduce(:+). — cremno
– cremno, Commented Jun 12, 2016 at 21:53
Your question is unclear. What does it mean to "total a combination of characters"? Are you referring to Total Functions? — Jörg W Mittag
– Jörg W Mittag, Commented Jun 13, 2016 at 10:42

Vincent Prigent · Accepted Answer · 2016-06-12 21:36:00Z

Try this

def uni_total(string) acc = 0 string.each_char do |item| acc += item.ord end acc end

You'll need some accumulator to sum up each char of your string Iterate on each char with each_char method ( string type does not have .each method anymore since Ruby 1.9 ) and then return the accumulator

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