checkcashregister.js

function checkCashRegister(price, cash, cid) {
  var change = cash - price;
  console.log('change: ' + change);

  var cashInDrawer = function() {
    var tot = 0;
    cid.forEach(function(curr) {
      tot = tot + curr[1]
    //  console.log(curr[1])
    //  console.log(tot)
    })
    return tot.toFixed(2);
  };

  var denomination = function(denom) {
    var val;
    switch (denom) {
      case "PENNY":
        val = .01
        break;
      case "NICKEL":
        val = .5
        break;
      case "DIME":
        val = .1
        break;
      case "QUARTER":
        val = .25
        break;
      case "ONE":
        val = 1
        break;
      case "FIVE":
        val = 5
        break;
      case "TEN":
        val = 10
        break;
      case "TWENTY":
          val = 20
          break;
      case "HUNDRED":
        val = 100
        break;
  }
    return val;
  }

  var makeChange = function(change, denomination) {

      return Math.abs(change - denomination);
  }


  //console.log(denomination('TWENTY'))
  console.log('cashindrawer: ' + cashInDrawer());

  if (change === 0) {
    console.log('Closed');
    return 'Closed'
  } else if (change > cashInDrawer()) {
    console.log('Insufficient Funds');
    return 'Insufficient Funds'
  } else {
    // can get change
    var changeArr = [];
    cid.reverse();
    cid.forEach(function(curr) {
      
      if (change % denomination(curr[0]) === 0) {
        console.log("Demonination: " + curr[0] + ' with ' + curr[1]);
        console.log(makeChange(change, curr[1]));
        if (makeChange(change, curr[1]) >= 0) {
          changeArr.push(curr);
          change = makeChange(change, curr[1]);
          console.log('change is: ' + change)
        }
      }

    })
    console.log(changeArr);
  }



  //console.log(cashInDrawer())
}

// Example cash-in-drawer array:
// [["PENNY", 1.01],
// ["NICKEL", 2.05],
// ["DIME", 3.10],
// ["QUARTER", 4.25],
// ["ONE", 90.00],
// ["FIVE", 55.00],
// ["TEN", 20.00],
// ["TWENTY", 60.00],
// ["ONE HUNDRED", 100.00]]


checkCashRegister(15.50, 20.00, [["PENNY", 1.01], ["NICKEL", 2.05], ["DIME", 3.10], ["QUARTER", 4.25], ["ONE", 90.00], ["FIVE", 55.00], ["TEN", 20.00], ["TWENTY", 60.00], ["ONE HUNDRED", 100.00]])