diff --git a/2-javascript-algorithms-datastructures/5-cash-register.js b/2-javascript-algorithms-datastructures/5-cash-register.js
new file mode 100644
index 0000000..1f9fd36
--- /dev/null
+++ b/2-javascript-algorithms-datastructures/5-cash-register.js
@@ -0,0 +1,52 @@
+const valueMap = {
+    PENNY: 0.01,
+    NICKEL: 0.05,
+    DIME: 0.1,
+    QUARTER: 0.25,
+    ONE: 1,
+    FIVE: 5,
+    TEN: 10,
+    TWENTY: 20,
+    'ONE HUNDRED': 100,
+}
+
+function checkCashRegister(price, cash, cid) {
+    let changeDue = cash - price;
+    let totalCID = 0;
+    let change = [];
+    let status = "unknown";
+    if (cash > price ){
+        for (let i in cid){
+            totalCID = totalCID +  cid[i][1];
+        }
+        if (totalCID < changeDue){
+            status = "INSUFFICIENT_FUNDS";
+        }
+        if (totalCID === changeDue){status = "CLOSED"; change = cid; changeDue = 0}
+        while (changeDue >= 0.01){
+            for (let i = 8; i >= 0; i--){
+                let value = valueMap[cid[i][0]];
+                let amount = cid[i][1]
+                let amountChange = 0;
+                while (changeDue >= value && amount > 0){
+                    changeDue -= value;
+                    amount -= value;
+                    amountChange += value;
+                    changeDue = Math.round(changeDue * 100) / 100;
+                } if (amountChange > 0 ){change.push([cid[i][0], amountChange])}
+            }
+            if (changeDue >=0.01){ status = "INSUFFICIENT_FUNDS"; change = []; break;}
+            status = "OPEN";
+        }
+    }
+    return {status: status, change: change};
+}
+
+let tests = [
+    checkCashRegister(19.5, 20, [["PENNY", 1.01], ["NICKEL", 2.05], ["DIME", 3.1], ["QUARTER", 4.25], ["ONE", 90], ["FIVE", 55], ["TEN", 20], ["TWENTY", 60], ["ONE HUNDRED", 100]]) === {status: "OPEN", change: [["QUARTER", 0.5]]},
+    checkCashRegister(3.26, 100, [["PENNY", 1.01], ["NICKEL", 2.05], ["DIME", 3.1], ["QUARTER", 4.25], ["ONE", 90], ["FIVE", 55], ["TEN", 20], ["TWENTY", 60], ["ONE HUNDRED", 100]]) === {status: "OPEN", change: [["TWENTY", 60], ["TEN", 20], ["FIVE", 15], ["ONE", 1], ["QUARTER", 0.5], ["DIME", 0.2], ["PENNY", 0.04]]},
+    checkCashRegister(19.5, 20, [["PENNY", 0.01], ["NICKEL", 0], ["DIME", 0], ["QUARTER", 0], ["ONE", 0], ["FIVE", 0], ["TEN", 0], ["TWENTY", 0], ["ONE HUNDRED", 0]]) === {status: "INSUFFICIENT_FUNDS", change: []},
+    checkCashRegister(19.5, 20, [["PENNY", 0.01], ["NICKEL", 0], ["DIME", 0], ["QUARTER", 0], ["ONE", 0], ["FIVE", 0], ["TEN", 0], ["TWENTY", 0], ["ONE HUNDRED", 0]]) === {status: "INSUFFICIENT_FUNDS", change: []},
+    checkCashRegister(19.5, 20, [["PENNY", 0.01], ["NICKEL", 0], ["DIME", 0], ["QUARTER", 0], ["ONE", 1], ["FIVE", 0], ["TEN", 0], ["TWENTY", 0], ["ONE HUNDRED", 0]]) === {status: "INSUFFICIENT_FUNDS", change: []},
+    checkCashRegister(19.5, 20, [["PENNY", 0.5], ["NICKEL", 0], ["DIME", 0], ["QUARTER", 0], ["ONE", 0], ["FIVE", 0], ["TEN", 0], ["TWENTY", 0], ["ONE HUNDRED", 0]]) === {status: "CLOSED", change: [["PENNY", 0.5], ["NICKEL", 0], ["DIME", 0], ["QUARTER", 0], ["ONE", 0], ["FIVE", 0], ["TEN", 0], ["TWENTY", 0], ["ONE HUNDRED", 0]]}
+]
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