Ruby | Set clear() function
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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