Ruby Integer integer? function with example Last Updated : 07 Jan, 2020 Comments Improve Suggest changes Like Article Like Report The integer? function in Ruby returns a boolean value. It returns true if the number is an int, else it returns false. Syntax: number.integer? Parameter: The function takes the integer which is to be checked for int or not. Return Value: The function returns a boolean value which determines if the value is int or not. Example #1: Ruby # Ruby program of Integer integer? function # Initializing the numbers num1 = 22 num2 = 15.555 num3 = 19.978 num4 = 20 # Prints if integer or not puts num1.integer? puts num2.integer? puts num3.integer? puts num4.integer? Output: true false false true Example #2:: Ruby # Ruby program of Integer integer? function # Initializing the numbers num1 = 89.76 num2 = -100 num3 = 100 num4 = 29.78 # Prints if integer or not puts num1.integer? puts num2.integer? puts num3.integer? puts num4.integer? Output: false true true false Comment More infoAdvertise with us Next Article Ruby Integer integer? function with example gopaldave Follow Improve Article Tags : Ruby Ruby-Methods Ruby Integer-class Similar Reads Ruby Integer to_int function with example The to_int function in Ruby converts the value of the number to int. If the number itself is an int, it returns self only. It is an alias of to_i function. Syntax: number.to_int Parameter: The function takes the number which is to be converted to int. Return Value: The function returns the int valu 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 gcd() function with example The gcd() function in Ruby returns the gcd of two numbers. GCD signifies the greatest common divisor which divides both the numbers. Syntax: number1.gcd(number2) Parameter: The function requires two numbers whose gcd is to be returned. Return Value: The function returns the gcd of two numbers Exampl 1 min read 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 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 to_i function with example The to_i function in Ruby converts the value of the number to int. If the number itself is an int, it returns self only. Syntax: number.to_i Parameter: The function takes the number which is to be converted to int. Return Value: The function returns the int value. Example #1: Ruby # Ruby program for 1 min read Ruby Integer pred() function with example 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 imme 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 magnitude function with example The magnitude() function in Ruby returns the absolute value of the integer. It is similar to the abs function and is an alias of it. Syntax: (number).magnitude Parameter: The function takes the integer whose magnitude is to be returned. Return Value: The function returns the absolute value of the in 1 min read Like