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Ruby Integer downto() function with example
• Last Updated : 07 Jan, 2020

The downto() function in Ruby returns all the numbers less than equal to number and greater than equal to limit. It iterates the given block, passing in decreasing values from int down to and including limit. If no block is given, an Enumerator is returned instead.

Syntax: (number).downto(limit)

Parameter: The function takes the integer from which the number starts decreasing. It takes a parameter which is the limit till which the decreasing occurs. It also takes an enumerator.

Return Value: The function returns all the numbers less than equal to number and greater than equal to limit.

Example #1:

 # Initializing the numbernum1 = 8   # Prints the number down to 0puts num1.downto(0){| i | print i, " "}   # Initializing the numbernum2 = -8   # Prints the number down to - 8 only since - 6 > -8puts num2.downto(-6){| i | print i, " "}

Output:

8 7 6 5 4 3 2 1 0 8
-8

Example #2:

 # Ruby program of Integer downto() function  # Initializing the numbernum1 = 5   # Prints the number down to - 3puts num1.downto(-3){| i | print i, " "}   # Initializing the numbernum2 = 19   # Prints the number down to 17puts num2.downto(17){| i | print i, " "}

Output:

5 4 3 2 1 0 -1 -2 -3 5
19 18 17 19

Example #3:

 # Initializing the numbernum1 = 5   # Prints the number down to - 3puts num1.downto(-3)

Output:

#
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