Matching Against Patterns
If we want to check whether two strings are identical, we can of course use the equality operator:
| | if "something else" == "something" |
| | # we'll never get here |
| | end |
To check whether a string matches a regular expression, Ruby offers the =~ operator. Some people call it the “matches” operator, or the “is like” operator. If the string matches the pattern defined in the regular expression, it returns a truthy value, which means we can use it in an if check. If we wanted to check whether a URL was an https one rather than http, we could use =~:
| | url = "https://example.com/" |
| | |
| | if url =~ /\Ahttps:/ |
| | puts "The URL is https" |
| | else |
| | puts "The URL is not https" |
| | end |
We can also use the match method ...
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