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Samira w4 exercises #62

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samira313 Nov 25, 2024
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samira313 Dec 12, 2024
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19 changes: 5 additions & 14 deletions Week1/prep-exercises/1-traffic-light/traffic-light-1.js
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Original file line number Diff line number Diff line change
Expand Up @@ -11,21 +11,12 @@ let rotations = 0;
while (rotations < 2) {
const currentState = trafficLight.state;
console.log("The traffic light is on", currentState);

// TODO
// if the color is green, turn it orange
// if the color is orange, turn it red
// if the color is red, add 1 to rotations and turn it green
}

/**
* The output should be:
if (currentState === "green") { trafficLight.state = "orange";

The traffic light is on green
The traffic light is on orange
The traffic light is on red
The traffic light is on green
The traffic light is on orange
The traffic light is on red
} else if (currentState === "orange") { trafficLight.state = "red";

*/
} else if (currentState === "red") { trafficLight.state = "green";
rotations++;
}
32 changes: 11 additions & 21 deletions Week1/prep-exercises/1-traffic-light/traffic-light-2.js
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Original file line number Diff line number Diff line change
@@ -1,9 +1,5 @@
"use strict";
/**
* The `possibleStates` property define the states (in this case: colours)
* in which the traffic light can be.
* The `stateIndex` property indicates which of the possible states is current.
*/

const trafficLight = {
possibleStates: ["green", "orange", "red"],
stateIndex: 0,
Expand All @@ -14,20 +10,14 @@ while (cycle < 2) {
const currentState = trafficLight.possibleStates[trafficLight.stateIndex];
console.log("The traffic light is on", currentState);

// TODO
// if the color is green, turn it orange
// if the color is orange, turn it red
// if the color is red, add 1 to cycles and turn it green
}

/**
* The output should be:

The traffic light is on green
The traffic light is on orange
The traffic light is on red
The traffic light is on green
The traffic light is on orange
The traffic light is on red
if (currentState === "green")
{ trafficLight.stateIndex = 1;
} else if (currentState === "orange")
{ trafficLight.stateIndex = 2 ;

*/
} else if (currentState === "red") {
trafficLight.stateIndex = 0;

cycle++;
}
}
31 changes: 25 additions & 6 deletions Week4/prep-exercises/1-wallet/ex2-classes.js
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Original file line number Diff line number Diff line change
Expand Up @@ -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() {
Expand Down Expand Up @@ -42,21 +46,36 @@ class Wallet {
`Name: ${this.name}, balance: ${eurosFormatter.format(this.#cash)}`
);
}
resetDailyAllowance() {
this.#dayTotalWithdrawals = 0;
console.log(
`Daily allowance reset to: ${eurosFormatter.format(this.#dailyAllowance)}`
);
}
setDailyAllowance(newAllowance) {
this.#dailyAllowance = newAllowance;
console.log(
`New daily withdrawal limit set to: ${eurosFormatter.format(this.#dailyAllowance)}`
);
}

}

function main() {
const walletJack = new Wallet('Jack', 100);
const walletJoe = new Wallet('Joe', 10);
const walletJane = new Wallet('Jane', 20);

walletJack.transferInto(walletJoe, 50);
walletJane.transferInto(walletJoe, 25);

walletJane.deposit(20);
walletJane.transferInto(walletJoe, 25);
walletJack.setDailyAllowance(70);
walletJack.withdraw(10);
walletJack.reportBalance();

walletJack.resetDailyAllowance();
walletJack.withdraw(20);
walletJack.reportBalance();
walletJoe.reportBalance();

walletJane.deposit(50);
walletJane.transferInto(walletJoe, 40);
walletJane.reportBalance();
}

Expand Down
48 changes: 39 additions & 9 deletions Week4/prep-exercises/1-wallet/ex3-object.js
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Original file line number Diff line number Diff line change
Expand Up @@ -4,18 +4,25 @@ function createWallet(name, cash = 0) {
return {
_name: name,
_cash: cash,
_dailyAllowance: 40,
_dayTotalWithdrawals: 0,

deposit: function (amount) {
this._cash += amount;
},

withdraw: function (amount) {
if (this._dayTotalWithdrawals + amount > this._dailyAllowance) {
console.log(`Insufficient remaining daily allowance!`);
return 0;
}
if (this._cash - amount < 0) {
console.log(`Insufficient funds!`);
return 0;
}

this._cash -= amount;
this._dayTotalWithdrawals += amount;
return amount;
},

Expand All @@ -38,23 +45,46 @@ function createWallet(name, cash = 0) {
getName: function () {
return this._name;
},
};
}
resetDailyAllowance: function () {
this._dayTotalWithdrawals = 0;
console.log(
`Daily allowance reset to: ${eurosFormatter.format(
this._dailyAllowance
)}`
);
},
setDailyAllowance: function (newAllowance) {
this._dailyAllowance = newAllowance;
console.log(
`New daily withdrawal limit set to: ${eurosFormatter.format(
this._dailyAllowance
)}`
);
},
}


}



function main() {
const walletJack = createWallet('Jack', 100);
const walletJoe = createWallet('Joe', 10);
const walletJane = createWallet('Jane', 20);

walletJack.transferInto(walletJoe, 50);
walletJane.transferInto(walletJoe, 25);

walletJane.deposit(20);
walletJane.transferInto(walletJoe, 25);

walletJack.setDailyAllowance(70);
walletJack.withdraw(10);
walletJack.reportBalance();
walletJoe.reportBalance();
walletJack.resetDailyAllowance();
walletJack.withdraw(20);
walletJack.reportBalance();

walletJane.deposit(50);
walletJane.transferInto(walletJoe, 40);
walletJane.reportBalance();
walletJoe.reportBalance();

}

main();
40 changes: 33 additions & 7 deletions Week4/prep-exercises/1-wallet/ex4-object-shared-methods.js
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Original file line number Diff line number Diff line change
Expand Up @@ -5,12 +5,18 @@ function deposit(amount) {
}

function withdraw(amount) {
if (this._dayTotalWithdrawals + amount > this._dailyAllowance) {
console.log(`Insufficient remaining daily allowance!`);
return 0;
}

if (this._cash - amount < 0) {
console.log(`Insufficient funds!`);
return 0;
}

this._cash -= amount;
this._dayTotalWithdrawals += amount;
return amount;
}

Expand All @@ -34,15 +40,33 @@ function getName() {
return this._name;
}

function resetDailyAllowance() {
this._dayTotalWithdrawals = 0;
console.log(
`Daily allowance reset to: ${eurosFormatter.format(this._dailyAllowance)}`
);
}

function setDailyAllowance(newAllowance) {
this._dailyAllowance = newAllowance;
console.log(
`New daily withdrawal limit set to: ${eurosFormatter.format(this._dailyAllowance)}`
);
}

function createWallet(name, cash = 0) {
return {
_name: name,
_cash: cash,
_dailyAllowance: 40,
_dayTotalWithdrawals: 0,
deposit,
withdraw,
transferInto,
reportBalance,
getName,
resetDailyAllowance,
setDailyAllowance,
};
}

Expand All @@ -51,15 +75,17 @@ function main() {
const walletJoe = createWallet('Joe', 10);
const walletJane = createWallet('Jane', 20);

walletJack.transferInto(walletJoe, 50);
walletJane.transferInto(walletJoe, 25);

walletJane.deposit(20);
walletJane.transferInto(walletJoe, 25);

walletJack.setDailyAllowance(70);
walletJack.withdraw(10);
walletJack.reportBalance();
walletJack.resetDailyAllowance();
walletJack.withdraw(20);
walletJack.reportBalance();
walletJoe.reportBalance();

walletJane.deposit(50);
walletJane.transferInto(walletJoe, 40);
walletJane.reportBalance();
walletJoe.reportBalance();
}

main();
36 changes: 30 additions & 6 deletions Week4/prep-exercises/1-wallet/ex5-prototype.js
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Original file line number Diff line number Diff line change
Expand Up @@ -3,13 +3,19 @@ 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._dayTotalWithdrawals + amount > this._dailyAllowance) {
console.log(`Insufficient remaining daily allowance!`);
return 0;
}
if (this._cash - amount < 0) {
console.log(`Insufficient funds!`);
return 0;
Expand Down Expand Up @@ -39,20 +45,38 @@ Wallet.prototype.getName = function () {
return this._name;
};

Wallet.prototype.resetDailyAllowance = function () {
this._dayTotalWithdrawals = 0;
console.log(
`Daily allowance reset to: ${eurosFormatter.format(this._dailyAllowance)}`
);
}

Wallet.prototype.setDailyAllowance = function (newAllowance) {
this._dailyAllowance = newAllowance;
console.log(
`New daily withdrawal limit set to: ${eurosFormatter.format(this._dailyAllowance)}`
);
}

function main() {
const walletJack = new Wallet('Jack', 100);
const walletJoe = new Wallet('Joe', 10);
const walletJane = new Wallet('Jane', 20);

walletJack.transferInto(walletJoe, 50);
walletJane.transferInto(walletJoe, 25);

walletJane.deposit(20);
walletJane.transferInto(walletJoe, 25);
walletJack.setDailyAllowance(70);
walletJack.withdraw(10);
walletJack.reportBalance();

walletJack.resetDailyAllowance();
walletJack.withdraw(20);
walletJack.reportBalance();
walletJoe.reportBalance();

walletJane.deposit(50);
walletJane.transferInto(walletJoe, 40);
walletJane.reportBalance();
walletJoe.reportBalance();

}

main();