Ruby | Set empty?() function
The empty?() is an inbuilt method in Ruby returns true if the set is empty or it returns false.
Syntax: s1.empty?()
Parameters: The function does not takes any parameter.
Return Value: It returns a boolean value. It returns true if the set is empty or it returns false.
Example 1:
require "set"
s1 = Set[]
puts "is empty?:"
puts s1.empty?()
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Output:
is empty?:
true
Example 2:
require "set"
s1 = Set[ 16 , 8 , 3 , 5 , 2 ]
puts "is empty?:"
puts s1.empty?()
|
Output:
false
Last Updated :
07 Jan, 2020
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