JavaScript Function: Validate integer parameters with custom Error

function validateInteger(number) 
{
  if (!Number.isInteger(number)) 
  {
    throw new Error('Invalid number. Please input an integer.');
  }
  console.log('Number is valid:', number);
}

// Example usage:
try {
  validateInteger(12); // Valid integer
  validateInteger(2.12); // Throws an error
} catch (error) {
  console.log('Error:', error.message);
}

 Output:

"Number is valid:"
12
"Error:"
"Invalid number. Please input an integer."