Ruby shuffle array method

In ruby programming language, shuffle() array methods are return a new array which contains random shuffle elements of applied array. Syntax of this method as follows.

shuffle → new array
shuffle() → new array

shuffle() array method example

Resultant array of this method contains n elements. Here n is the number of element in apply array. Let's see an example.

# Our array
arr  = [3, 2, 5, 6]

# shuffle operation
s1 = arr.shuffle
s2 = arr.shuffle()

# Display result
print(" s1 : ",s1)
print("\n s2 : ",s2)
Ruby shuffle method example 1
 s1 : [3, 5, 6, 2]
 s2 : [3, 2, 6, 5]

When array is empty then this method is return a new empty array. And array elements contains objects and other class collection. such this case object is referenced by new array elements.

# Our array
a1  = [[1,2],[true,nil],10]
a2  = []
# shuffle operation
s1 = a1.shuffle
s2 = a1.shuffle
s3 = a2.shuffle
# Display result
print(" s1 : ",s1)
print("\n s2 : ",s2)
print("\n s3 : ",s3)
Ruby shuffle method example 2
 s1 : [[true, nil], 10, [1, 2]]
 s2 : [[1, 2], 10, [true, nil]]
 s3 : []


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