# Exact Change - comparison with zero (probably) not working

Exact Change - comparison with zero (probably) not working
0

#1

Hello, I’m currently stuck in this problem.

[UPDATE] It is working now, but FCC expects 0.50 to be a float value. I tried to set the decimal digits with toFixed(2) and parse it with parseFloat, but parseFloat deletes the zero ( 0.5 ). Can someone enlighten me? Thanks in advance!

``````  ["PENNY", 0.00], ["NICKEL", 0.00], ["DIME", 0.00], ["QUARTER", 0.00], ["ONE", 0.00], ["FIVE", 0.00], ["TEN", 0.00], ["TWENTY", 0.00], ["ONE HUNDRED", 0.00]
];

function get_unit(unit){
return {
0: 0.01, 1:0.05, 2:0.10, 3:0.25, 4: 1.00, 5:5.00,6: 10.00, 7: 20.00, 8: 100.00
}[unit];
}

function checkCashRegister(price, cash, cid) {
if(price>cash) return "Insufficient Funds";
var total=0,value=cash-price;
var temp_change = [];
for(var i=0; i<cid.length; i++) {
total += cid[i][1];
}
total = parseFloat(total.toFixed(2));
value = parseFloat(value);
if(total < value) return "Insufficient Funds";
if(total == value) return "Closed";
for(i=cid.length-1;i>=0;i--) {
while(value >= parseFloat(get_unit(i))) {
value = value - get_unit(i);
change[i][1] += get_unit(i);
cid[i][1] -= get_unit(i);
if(value==0){break;}
}
}
for(i=cid.length-1;i>=0;i--) {
if(change[i][1] == 0) change.splice(i,1);
else change[i][1] = change[i][1].toPrecision(2);
}
// Here is your change, ma'am.
return change;
}

// 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(19.50, 20.00, [["PENNY", 0.01], ["NICKEL", 0], ["DIME", 0], ["QUARTER", 0], ["ONE", 1.00], ["FIVE", 0], ["TEN", 0], ["TWENTY", 0], ["ONE HUNDRED", 0]]);
``````