Ruby | Enumerable sum() function

The sum() of enumerable is an inbuilt method in Ruby returns the sum of all the elements in the enumerable. If a block is given, the block is applied to the enumerable, then the sum is computed. If the enumerable is empty, it returns init.

Syntax: enu.sum { |obj| block }

Parameters: The function accepts a block.

Return Value: It returns the sum of the enumerable.

Example #1:

# Initialize
enu = (1..5)

# Prints
enu.sum

Output:

15

Example #2:

# Ruby program for sum method in Enumerable

# Initialize
enu = [10, 13, 12, 11]

# Prints
enu.sum {|obj| obj * 5}

Output:

230