generate an amortized loan calculator in javascript

index.tsx
// Define inputs
const principal = 100000;
const interestRate = 5;
const years = 15;

// Calculate monthly interest rate and number of payments
const monthlyInterestRate = (interestRate / 100) / 12;
const numberOfPayments = years * 12;

// Calculate monthly payment
const x = Math.pow(1 + monthlyInterestRate, numberOfPayments);
const monthlyPayment = (principal * x * monthlyInterestRate) / (x - 1);

// Calculate amortization schedule
let balance = principal;
let amortizationSchedule = [];
for (let i = 1; i <= numberOfPayments; i++) {
  const interest = balance * monthlyInterestRate;
  const principalPayment = monthlyPayment - interest;
  balance = balance - principalPayment;
  amortizationSchedule.push({ 
    month: i, 
    balance: balance, 
    principal: principalPayment, 
    interest: interest, 
    totalInterest: totalInterest + interest 
  })
}

// Display results
console.log(`Loan: $${principal.toFixed(2)} at ${interestRate}% interest for ${years} years`);
console.log(`Monthly Payment: $${monthlyPayment.toFixed(2)}`);
console.log(`Total Interest Paid: $${totalInterest.toFixed(2)}`);

// Display amortization schedule
amortizationSchedule.forEach(month => {
  console.log(`Month ${month.month}: $${month.principal.toFixed(2)} principal, $${month.interest.toFixed(2)} interest, $${month.balance.toFixed(2)} balance`);
});
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