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What is array.reverse() in Ruby?
okwudili onyejiaku
In Ruby, array.reverse() is a method that reverses an array but does not change the original array. Instead, it returns a new array that contains the original array’s elements in reverse order.
Syntax
array.reverse()
Parameters
This method does not take any parameters. It only requires the array instance.
Return value
The reverse() method returns a new array that contains the elements of the instance array in reverse order.
# creating array instances
array1 = [1, 2, 3, 4, 5]
array2 = ["a", "b", "c", "d", "e"]
array3 = ["Javascript", "Python", "Java", "C++", "Ruby"]
# printing their reverse form using `reverse()` method
puts "#{array1} in reverse = #{array1.reverse()}"
puts "#{array2} in reverse = #{array2.reverse()}"
puts "#{array3} in reverse = #{array3.reverse()}"
Note: The
reverse()method does not overwrite or change the original array.
array = [1, 2, 3, 4, 5]
reversedArray = array.reverse()
puts "#{reversedArray}\n"
puts "#{array}\n"In the above code, we see that the original array remains the same.
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