Ruby | Numeric method

The <=> is an inbuilt method in Ruby, which returns 0 if both the numbers are equal, else it returns 1. 

Syntax: a <=> b 

Parameters: The function needs two number whose comparison is to be done.

Return Value: It returns 0 if both the numbers are same, else it returns 1.

Example 1:  

Ruby

# Ruby program for <=> method in Numeric

# Initialize two numbers
a = 19
b = 4

# Prints 0 if equal else 1
puts  a<=>b

Output: 

1

Example 2: 

Ruby

# Ruby program for <=> method in Numeric

# Initialize two numbers
a = 13
b = 13

# Prints 0 if equal else 1
puts  a <=> b

Output: 

0