week-4

Week4/prep-exercises/1-wallet/ex2-classes.js

@@ -3,10 +3,14 @@ import eurosFormatter from './euroFormatter.js';
 class Wallet {
   #name;
   #cash;
+  #dailyAllowance;
+  #dayTotalWithdrawals;
 
   constructor(name, cash) {
     this.#name = name;
     this.#cash = cash;
+    this.#dailyAllowance = 40;
+    this.#dayTotalWithdrawals = 0;
   }
 
   get name() {
@@ -22,8 +26,13 @@ class Wallet {
       console.log(`Insufficient funds!`);
       return 0;
     }
+    if (this.#dayTotalWithdrawals + amount > this.#dailyAllowance) {
+      console.log(`Daily allowance limit not sufficient!`);
+      return 0;
+    }
 
     this.#cash -= amount;
+    this.#dayTotalWithdrawals += amount;
     return amount;
   }
 
@@ -42,13 +51,26 @@ class Wallet {
       `Name: ${this.name}, balance: ${eurosFormatter.format(this.#cash)}`
     );
   }
+
+    resetDailyAllowance() {
+      this.#dayTotalWithdrawals = 0;
+    }
+
+      setDailyAllowance(newAllowance) {
+        this.#dailyAllowance = newAllowance;
+        console.log(`Daily allowance set to: ${eurosFormatter.format(newAllowance)}`
+        );
+      }
 }
 
 function main() {
   const walletJack = new Wallet('Jack', 100);
   const walletJoe = new Wallet('Joe', 10);
   const walletJane = new Wallet('Jane', 20);
 
+  walletJack.setDailyAllowance(80);
+
+
   walletJack.transferInto(walletJoe, 50);
   walletJane.transferInto(walletJoe, 25);
 

Week4/prep-exercises/1-wallet/ex3-object.js

@@ -1,9 +1,11 @@
 import eurosFormatter from './euroFormatter.js';
 
-function createWallet(name, cash = 0) {
+function createWallet(name, cash = 0, dailyAllowance = 40, dayTotalWithdrawals = 0) {
   return {
     _name: name,
     _cash: cash,
+    _dailyAllowance: dailyAllowance,
+    _dayTotalWithdrawals: dayTotalWithdrawals,
 
     deposit: function (amount) {
       this._cash += amount;
@@ -15,20 +17,36 @@ function createWallet(name, cash = 0) {
         return 0;
       }
 
+      if (this._dayTotalWithdrawals + amount > this._dailyAllowance) {
+        console.log(`Daily allowance limit not sufficient!`);
+        return 0;
+      }
+
       this._cash -= amount;
+      this._dayTotalWithdrawals += amount;
       return amount;
     },
 
     transferInto: function (wallet, amount) {
       console.log(
-        `Transferring ${eurosFormatter.format(amount)} from ${
-          this._name
-        } to ${wallet.getName()}`
+        `Transferring ${eurosFormatter.format(amount)} from ${this._name} to ${wallet.getName()}`
       );
       const withdrawnAmount = this.withdraw(amount);
       wallet.deposit(withdrawnAmount);
     },
 
+    setDailyAllowance: function (newAllowance) {
+      this._dailyAllowance = newAllowance;
+      console.log(
+        `Daily allowance set to: ${eurosFormatter.format(newAllowance)}`
+      );
+    },
+
+    resetDailyAllowance: function () {
+      this._dayTotalWithdrawals = 0;
+      console.log("Daily withdrawal limit has been reset.");
+    },
+
     reportBalance: function () {
       console.log(
         `Name: ${this._name}, balance: ${eurosFormatter.format(this._cash)}`
@@ -37,7 +55,7 @@ function createWallet(name, cash = 0) {
 
     getName: function () {
       return this._name;
-    },
+    }
   };
 }
 

Week4/prep-exercises/1-wallet/ex4-object-shared-methods.js

@@ -10,7 +10,13 @@ function withdraw(amount) {
     return 0;
   }
 
+  if (this._dayTotalWithdrawals + amount > this._dailyAllowance) {
+    console.log(`Daily withdrawal limit exceeded!`);
+    return 0;
+  }
+
   this._cash -= amount;
+  this._dayTotalWithdrawals += amount;
   return amount;
 }
 
@@ -29,6 +35,16 @@ function reportBalance() {
     `Name: ${this._name}, balance: ${eurosFormatter.format(this._cash)}`
   );
 }
+function resetDailyAllowance() {
+  this._dayTotalWithdrawals = 0;
+  console.log("Daily withdrawal limit has been reset.");
+}
+
+function setDailyAllowance(newAllowance) {
+  this._dailyAllowance = newAllowance;
+  console.log(`New daily withdrawal limit is set to ${newAllowance} euros.`);
+}
+
 
 function getName() {
   return this._name;
@@ -38,10 +54,14 @@ function createWallet(name, cash = 0) {
   return {
     _name: name,
     _cash: cash,
+    _dailyAllowance: 40,
+    _dayTotalWithdrawals: 0,
     deposit,
     withdraw,
     transferInto,
     reportBalance,
+    resetDailyAllowance,
+    setDailyAllowance,
     getName,
   };
 }

Week4/prep-exercises/1-wallet/ex5-prototype.js

@@ -3,21 +3,29 @@ import eurosFormatter from './euroFormatter.js';
 function Wallet(name, cash) {
   this._name = name;
   this._cash = cash;
+  this._dailyAllowance = 40;
+  this._dayTotalWithdrawals = 0;
 }
 
 Wallet.prototype.deposit = function (amount) {
   this._cash += amount;
-};
+}
 
 Wallet.prototype.withdraw = function (amount) {
   if (this._cash - amount < 0) {
     console.log(`Insufficient funds!`);
     return 0;
   }
 
+  if (this._dayTotalWithdrawals + amount > this._dailyAllowance) {
+    console.log(`Daily withdrawal limit exceeded!`);
+    return 0;
+  }
+
   this._cash -= amount;
+  this._dayTotalWithdrawals += amount;
   return amount;
-};
+}
 
 Wallet.prototype.transferInto = function (wallet, amount) {
   console.log(
@@ -27,17 +35,27 @@ Wallet.prototype.transferInto = function (wallet, amount) {
   );
   const withdrawnAmount = this.withdraw(amount);
   wallet.deposit(withdrawnAmount);
-};
+}
 
 Wallet.prototype.reportBalance = function () {
   console.log(
     `Name: ${this._name}, balance: ${eurosFormatter.format(this._cash)}`
   );
-};
+}
 
 Wallet.prototype.getName = function () {
   return this._name;
-};
+}
+
+Wallet.prototype.resetDailyAllowance = function () {
+  this._dayTotalWithdrawals = 0;
+  console.log("Daily withdrawal limit has been reset.");
+}
+
+Wallet.prototype.setDailyAllowance = function (newAllowance) {
+  this._dailyAllowance = newAllowance;
+  console.log(`New daily withdrawal limit is set to ${newAllowance} euros.`);
+}
 
 function main() {
   const walletJack = new Wallet('Jack', 100);