Ruby | Set clear() function

Ruby | Set clear() function

Last Updated : 07 Jan, 2020

The clear() is an inbuilt method in Ruby which clears all the elements in the set.

Syntax: s1.name.clear() Parameters: The function does not takes any parameter. Return Value: It returns self after clearing all the elements in the set.

Example 1:

CPP

#Ruby program to illustrate the clear method

#requires the set
require "set"

    s1
    = Set[2, 1]

#Prints s1
      puts s1

#Clears the set and returns self
#which is printed
          puts s1.clear

Output:

Set: {2, 1}
Set: {}

Example 2:

CPP

#Ruby program to illustrate the clear method

#requires the set
require "set"

    s1
    = Set[]

#Prints s1
      puts s1

#Add 10 to it
          s1
      << 10

         puts s1

#Clears the set and returns self
#which is printed
             puts s1.clear

Output:

Set: {}
Set: {10}
Set: {}

Reference: https://devdocs.io/ruby~2.5/set#method-i-clear

Ruby | Set clear() function

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