Ruby Array Exercises: Create a new array using first three elements of a given array of integers

Ruby Array: Exercise-27 with Solution

Write a Ruby program to create a new array using first three elements of a given array of integers. If the length of the given array is less than three return the original array.

Ruby Code:

def check_array(nums)
    front = []
	if nums.length >= 3
		front[0] = nums[0]
		front[1] = nums[1]
		front[2] = nums[2]
	elsif nums.length == 2
		front[0] = nums[0]
		front[1] = nums[1]
	else nums.length == 1
	    front[0] = nums[0]
	end
	return front
end

print check_array([1, 3, 4, 5]),"\n"
print check_array([1, 2, 3]),"\n"
print check_array([1,2]),"\n"
print check_array([1]),"\n"  

Output:

[1, 3, 4]
[1, 2, 3]
[1, 2]
[1]

Flowchart:

Ruby Code Editor:

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