Can I dynamically call a math operator in Ruby?

Question

Is there something like this in ruby?

send(+, 1, 2)

I want to make this piece of code seem less redundant

if op == \"+\"
           


        

Answer 1

As an other option, if your operator and operands happen to be in string format, say from a gets method, you can also use eval:

For example:

a = '1'; b = '2'; o = '+'

eval a+o+b

becomes

eval '1+2'

which returns 3