exclude?(string) public

The inverse of String#include?. Returns true if the string does not include the other string.

"hello".exclude? "lo" # => false "hello".exclude? "ol" # => true "hello".exclude? ?h # => false
Show source
Register or log in to add new notes.
February 18, 2015
0 thanks

Not only for strings, but arrays and hashes too

exclude? is defined as !include?, meaning it is the exact opposite of include? . See the source.

This means that it works for Arrays and Hashes too, as well as for Strings.

It works for Arrays:

>> [nil].exclude?(nil) => false >> [nil].include?(nil) => true >> ["lala"].include?(nil) => false >> ["lala"].exclude?(nil) => true

And for Hashes:

>> params = {} => {} >> params[:db] = "lol" => "lol" >> params.exclude?(:db) => false >> params.include?(:db) => true >>