gistfile1.txt

function isInArr (name) {
 for (i=0; i < arr.length; i++) {
   if (arr[i][0] === name) {
     return true;
   }
 } 
  return false;
}
   
var arr = [];
function getChange (change, cid) {
  
 if (change >= 100.00) {
  if (cid[8][1]) {
   if (isInArr("ONE HUNDRED")) {
   arr[arr.length-1][1] += 100.00;
    cid[8][1] -= 100.00;
   }
   else {
     arr.push(["ONE HUNDRED", 100.00]);
     cid[8][1] -= 100.00;
    }
  return (getChange(change-100.00, cid));
  }
 else {
   //try to fill lack of $100 bills
   if (cid[7][1]) {
       if (isInArr("TWENTY")) {
   arr[arr.length-1][1] += 20.00;
   cid[7][1] -= 20.00;
 }
   else {
     arr.push(["TWENTY", 20.00]);
     cid[7][1] -= 20.00;
   }
  return (getChange(change-20.00, cid));
   }
   else {
    return "Insufficient Funds";
   }
  }
 }
else if (change >= 20.00) {
  if (cid[7][1]) {
   if (isInArr("TWENTY")) {
   arr[arr.length-1][1] += 20.00;
   cid[7][1] -= 20.00;
 }
   else {
     arr.push(["TWENTY", 20.00]);
     cid[7][1] -= 20.00;
   }
  return (getChange(change-20.00, cid));
 }
 else {
   //try to fill lack of $20.00 bills
   if (cid[6][1]) {
     if (isInArr("TEN")) {
   arr[arr.length-1][1] += 10.00;
   cid[6][1] -= 10.00;
 }
   else {
     arr.push(["TEN", 10.00]);
     cid[6][1] -= 10.00;
   }
  return (getChange(change-10.00, cid));
   }
   else {
    return "Insufficient Funds";
   }
  }
}
 else if (change >= 10.00) {
 if (cid[6][1]) {
   if (isInArr("TEN")) {
   arr[arr.length-1][1] += 10.00;
   cid[6][1] -= 10.00;
 }
   else {
     arr.push(["TEN", 10.00]);
     cid[6][1] -= 10.00;
   }
  return (getChange(change-10.00, cid));
 }
 else {
   // try to fill lack of $20 bills
    if (cid[5][1]) {
   if (isInArr("FIVE")) {
   arr[arr.length-1][1] += 5.00;
   cid[5][1] -= 5.00;
 }
   else {
     arr.push(["FIVE", 5.00]);
     cid[5][1] -= 5.00;
   }
  return (getChange(change-5.00, cid));
    }
    else {
    return "Insufficient Funds";
    }
  }
 }
else if (change >= 5.00) {
  if (cid[5][1]) {
   if (isInArr("FIVE")) {
   arr[arr.length-1][1] += 5.00;
   cid[5][1] -= 5.00;
 }
   else {
     arr.push(["FIVE", 5.00]);
     cid[5][1] -= 5.00;
   }
  return (getChange(change-5.00, cid));
 }
 else {
    return "Insufficient Funds";
  }
}
else if (change >= 1.00) {
  if (cid[4][1]) {
   if (isInArr("ONE")) {
   arr[arr.length-1][1] += 1.00;
   cid[4][1] -= 1.00;
 }
   else {
     arr.push(["ONE", 1.00]);
     cid[4][1] -= 1.00;
   }
  return (getChange(change-1.00, cid));
 }
 else {
    return "Insufficient Funds";
  }
}
else if (change >= 0.25) {
 if (cid[3][1]) {
   if (isInArr("QUARTER")) {
   arr[arr.length-1][1] += 0.25;
   cid[3][1] -= 0.25;
 }
   else {
     arr.push(["QUARTER", 0.25]);
     index += 1;
   }
  return (getChange(change-0.25, cid));
 }
 else {
    return "Insufficient Funds";
  }
}
else if (change >= 0.10) {
  if (cid[2][1]) {
   if (isInArr("DIME")) {
   arr[arr.length-1][1] += 0.10;
   cid[2][1] -= 0.10;
 }
   else {
     arr.push(["DIME", 0.10]);
     cid[2][1] -= 0.10;
   }
  return (getChange(change-0.10, cid));
 }
 else {
    return "Insufficient Funds";
  }
}
else if (change >= 0.05) {
 if (cid[1][1]) {
   if (isInArr("NICKEL")) {
   arr[arr.length-1][1] += 0.05;
   cid[1][1] -= 0.05;
 }
   else {
     arr.push(["NICKEL", 0.05]);
     cid[1][1] -= 0.05;
   }
  return (getChange(change-0.05, cid));
 }
 else {
    return "Insufficient Funds";
  }
}
else if (change > 0.00) {
  if (cid[0][1]) {
   if (isInArr("PENNY")) {
   arr[arr.length-1][1] += 0.01;
   cid[0][1] -= 0.01;
 }
   else {
     arr.push(["PENNY", 0.01]);
     cid[0][1] -= 0.01;
   }
  return (getChange(change-0.01, cid));
 }
 else {
    return "Insufficient Funds";
  }
}
  
  return arr;

}

function checkCashRegister(price, cash, cid) {
  var change = cash - price;
  var drawer = 0;
  
  for (i=0; i < cid.length; i++) {
    drawer += cid[i][1];
  }
  
   if (change > drawer) {
     return "Insufficient Funds";
   }
  else if ( change === drawer) {
    return "Closed";
  }
  
  return getChange(change, cid);
}

checkCashRegister(19.50, 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]]);