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Ruby | String include? Method

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include? is a String class method in Ruby which is used to return true if the given string contains the given string or character.
Syntax: str.include? Parameters: Here, str is the given string. Returns: true if the given string contains the given string or character otherwise false.
Example 1:
# Ruby program to demonstrate 
# the include?  method 
       
# Taking a string and 
# using the method
puts "Ruby".include? "by"                 
puts "String".include? "ui"

                    
Output:
true
false
Example 2:
# Ruby program to demonstrate 
# the include?  method 
       
# Taking a string and 
# using the method
puts "Sample".include? "am"                 
puts "Input".include? "pt"

                    
Output:
true
false

Last Updated : 09 Dec, 2019
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