Array#&() is a Array class method which performs set intersection operation on the arrays. And returns the common of the two arrays.
Syntax: Array.&()
Parameter: Arrays for performing the intersection operation.
Return: Common elements from both the arrays.
Example #1 :
# Ruby code for &() method # showing intersection operation # declaration of array a = [ 18 , 22 , 33 , 4 , 5 , 6 ]
# declaration of array b = [ 5 , 4 , 22 , 1 , 88 , 9 ]
# declaration of array c = [ 18 , 22 , 33 , 40 , 50 , 6 ]
# a intersecting b puts "intersection of a and b : #{a & b}\n\n"
# a intersecting c puts "intersection of a and c : #{a & c}\n\n"
# b intersecting c puts "intersection of b and c : #{b & c}\n\n"
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Output :
intersection of a and b : [22, 4, 5] intersection of a and c : [18, 22, 33, 6] intersection of b and c : [22]
Example #2 :
# Ruby code for &() method # showing intersection operation # declaration of array a = [ "abc" , "xyz" , "dog" ]
# declaration of array b = [ "cow" , "cat" , "dog" ]
# declaration of array c = [ "cat" , "1" , "dog" ]
# a intersecting b puts "intersection of a and b : #{a & b}\n\n"
# a intersecting c puts "intersection of a and c : #{a & c}\n\n"
# b intersecting c puts "intersection of b and c : #{b & c}\n\n"
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Output :
intersection of a and b : ["dog"] intersection of a and c : ["dog"] intersection of b and c : ["cat", "dog"]