CODEWITHSUNDEEP
ruby
napsterdsilva
napsterdsilva

Reputation: 173

Ruby : Convert String to Float

I have 3 string variables that I need to add. a = "5.21", b= "5.22" and c = "5.23". When I try to add i get a string, I need the numerical value

I have tried the following

a = a.to_f => 5.2
b = b.to_f => 5.2
c = c.to_f => 5.2
sum = a + b + c => 15.6

How do i get output 15.66. please help

Upvotes: 5

Views: 13664

Answers (1)

garythegoat
garythegoat

Reputation: 1587

Try taking advantage of Ruby's built in Enumerable methods. Try this:

a = "5.21"
b = "5.22"
c = "5.23"

[a, b, c].map(&:to_f).inject(:+)
#=> 15.66

Upvotes: 11

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