<<() is a String class method in Ruby which is used to append the given object to the string. If the object is an integer, then by default it is considered a codepoint and converted to a character before being appended.
Syntax: str << "object"
Parameters: Here, str is the specified string and object is appended to the string.
Returns: Appended string.
Example 1:
#ruby 2.3.1 # Ruby program to demonstrate # the << method # Taking a string and # using the method puts "Hey " << "Champ"
puts "Kirti " << 33
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Output:
Hey Champ Kirti !
Example 2:
#ruby 2.3.1 # Ruby program to demonstrate # the << method # Taking a string and # using the method puts "Ruby " << "String"
puts "Hello " << "Geeks!"
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Output:
Ruby String Hello Geeks!