带有OR的Ruby IF语句

Question

if subject.downcase.include? product.name.downcase || body.downcase.include? product.name.downcase
  puts "111"
end

Why is the above faulty in ruby? Is there a better way to write this?

This is the resulting error:

SyntaxError: (irb):7: syntax error, unexpected tIDENTIFIER, expecting keyword_then or ';' or '\n'
... body.downcase.include? product.name.downcase
...                               ^
(irb):9: syntax error, unexpected keyword_end, expecting end-of-input

Answer 1

This translates to:

if subject.downcase.include? (product.name.downcase || body.downcase.include? product.name.downcase)

You need to add parentheses:

if subject.downcase.include?(product.name.downcase) || body.downcase.include? product.name.downcase

However probably this is more readable:

if [subject, body].any? {|element| element.downcase.include? product.name.downcase}