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:
#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:
#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
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