Ruby Integer pred() function with example Last Updated : 07 Jan, 2020 Summarize Comments Improve Suggest changes Share Like Article Like Report The pred function in Ruby returns the immediate predecessor of the number, i.e., it returns number - 1. If a float value is used, it throws an error message. Syntax: number.pred Parameter: The function takes the integer whose predecessor is to be returned. Return Value: The function returns the immediate predecessor of the number, i.e., it returns number - 1 Example 1: Ruby # Ruby program for pred function # Initializing the numbers num1 = 100 num2 = 17 num3 = -90 num4 = -29 # Printing the pred value puts num1.pred puts num2.pred puts num3.pred puts num4.pred Output: 99 16 -91 -30 Example 2: Ruby # Ruby program for pred function # Initializing the numbers num1 = 19 num2 = -17 num3 = -18 num4 = 16 # Printing the pred value puts num1.pred puts num2.pred puts num3.pred puts num4.pred Output: 18 -18 -19 15 Comment More infoAdvertise with us Next Article Ruby Integer next function with example G gopaldave Follow Improve Article Tags : Ruby Ruby-Methods Ruby Integer-class Similar Reads Ruby Integer prime? function with example The prime? function in Ruby returns a boolean value. It returns true if the number is prime, else it returns false. It requires the 'prime' class to be pre-added. Syntax: number.prime? Parameter: The function takes the integer which is to be checked for prime or not. Return Value: The function ret 1 min read Ruby Integer odd? function with example The odd? function in Ruby returns a boolean value. It returns true if the number is odd, else it returns false. Syntax: number.odd? Parameter: The function takes the integer which is to be checked for odd or not. Return Value: The function returns a boolean value which determines if the value is odd 1 min read Ruby Integer next function with example The next function in Ruby returns the immediate successor of the number, i.e., it returns number + 1. If a float value is used, it throws an error message. Syntax: number.next Parameter: The function takes the integer whose next is to be returned. Return Value: The function returns the immediate suc 1 min read Ruby Integer remainder() function with example The remainder() function in Ruby returns the remainder when two numbers are divided. Syntax: (number1).remainder(number2) Parameter: The function takes two number number1 and number2 whose integer division and remainder is returned. Return Value: The function returns the remainder. Example 1: Rub 1 min read Ruby Integer to_r function with example The to_r function in Ruby converts the value of the number to a rational. Syntax: number.to_r Parameter: The function takes the number which is to be converted to a rational number. Return Value: The function returns the rational number. Example #1: Ruby # Ruby program for to_r function # Initializi 1 min read Ruby Integer lcm() function with example The lcm() function in Ruby returns the lcm of two numbers. LCM signifies the lowest common multiple which is divisible by both the numbers. Syntax: number1.lcm(number2) Parameter: The function requires two numbers whose lcm is returned. Return Value: The function returns the lcm of two numbers Examp 1 min read Like