Ruby | Set add? function

Ruby | Set flatten!() function

Last Updated : 07 Jan, 2020

The flatten!() is an inbuilt method in Ruby replaces the receiver with the result in place. Returns nil if no modifications were made.

Syntax: s1.flatten!()

Parameters: The function does not takes any parameter.

Return Value: It returns the receiver with the result in place, or else returns nil if no changes are made.

Example 1:

# Ruby program to illustrate the empty method  
   
# requires the set  
require "set"
   
s1 = Set[1, 2, 4, 4] 
   
# flatten method used 
s2 = s1.flatten!() 
   
# Prints s2  
puts s2 

Output:

Example 2:

# Ruby program to illustrate the empty method  
   
# requires the set  
require "set"
   
s1 = Set[16, 8, 3, 5, 2] 
   
# flatten method used 
s2 = s1.flatten!() 
   
# Prints s2  
puts s2 

Output:

Ruby | Set add? function

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