What is the equal-tilde operator in ruby mean?
The equal-tilde operator in ruby is the “match” operator. It take an regular expression on the left hand side and the string to match on the right hand side. The expression …
/or/ =~ “Hello World”
will return 7 because a match is found on index 7 of the string. index starts at 0.
/abc/ =~ “Hello World”
will return nil because there is no match.