function isDivisible(divisee, divisor) {
  if(divisee % divisor === 0){
    return true
  }else{
    return false
  }
}

/* From here down, you are not expected to
   understand.... for now :)


   Nothing to see here!

*/

// tests

function testIsDivisible() {
  if (isDivisible(10, 2) && !isDivisible(11, 2)) {
    console.log('SUCCESS: `isDivisible` is working');
  } else {
    console.log('FAILURE: `isDivisible` is not working');
  }
}

testIsDivisible();