Sample for simple error

function printOperations(a, b) {
  if (typeof a !== 'number' || typeof b !== 'number') {
    throw new Error('Both arguments must be numbers!');
  }

  console.log(a + b, a / b);
}

// The function call below should print: 12 1
printOperations(6, 6);  //if string is entered, the above custom error message will be printed

function exclaim(name, count) {
  for (let i = 0; i < count; i += 1) {
    console.log(`${name}!`);
  }
}

// Exclaim 'Muriel!' six times
exclaim('Muriel', 6);   //order must be correct - string and then number