math operators in js code example

Example 1: js modulo

// The JS % operater is REMAINDER not MODULO
// For modulo behaviour use
function mod(n, m) {
  return ((n % m) + m) % m;
}

Example 2: modulus js

//We are trying to find a table for my speed dating group to sit at, that is the most economical for the restaurant. How many options do I have?

const tableNumbers = [5, 14, 7, 10, 20, 11, 12, 15, 3]

for (let i =0; i < tableNumbers.length; i++) {
  //if the tableNumbers length can be divided by 2 (%) = and leavs a remainder of 0 
    if (tableNumbers[i] % 2 === 0) {
        console.log(tableNumbers[i])
    }
}