Ruby | Integer <=> function

The <=> is an inbuilt method in Ruby returns three values -1, 0 or +1. It returns -1 if the number is less than the given number, 0 if both are same, 1 if it is greater than the given number.

Syntax: num1 <=> num2 Parameters: The function accepts no parameter. Return Value: It returns -1, 0, +1 as stated above.

Example 1: Ruby

# Ruby program for <=> method in Integer 
  
# Initialize numbers 
num1 = 6
num2 = 3 

# Prints <=>
print num1 <=> num2

Output:

1

Example 2: Ruby

# Ruby program for <=> method in Integer 
  
# Initialize numbers 
num1 = 2
num2 = 3 

# Prints <=>
print num1 <=> num2

Output:

-1

Example 3: Ruby

# Ruby program for <=> method in Integer 
  
# Initialize numbers 
num1 = 3
num2 = 3 

# Prints <=>
print num1 <=> num2

Output:

0