By default the Ruby String#start_with?
method does a case-sensitive match. However, you can perform a case-insensitive match by:
- Converting both, the string and the prefix(es) you are comparing, to lowercase (or uppercase), and;
- Applying
String#start_with?
on the converted strings.
For example:
puts "Foobar".downcase.start_with?("foo") #=> true puts "fOObar".downcase.start_with?("foo", "bar", "baz") #=> true # ...
In the examples above, the strings are converted to lowercase first (using the String#downcase
method), and then String#start_with?
is applied on the converted strings.
You can also use the String#upcase
method instead of String#downcase
if you prefer to convert the strings to uppercase instead of lowercase.
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