Javascript Loop Program -
i'm trying make javascript loan calculator program. can't seem loop put different numbers on each line. it's suppose show amount of money paid off starting @ 24 months, 36 months, 48 months, , 60 months. i'm using function calculations i'm getting results 24 months. know got change nummonths 36, 48, , 60 have no idea that. thought loop add 12 months each time loops. how format numbers currency? i'm getting long number @ end. tried doing parsefloat on calculate() i'm getting error. here code:
<html> <body bgcolor="#ffc0cb"> <head> <title>chapter 6 assignment 2</title> </head> <body> <h1>loan calculator</h1> <script type="text/javascript"> var vehicleprice = window.prompt("what vehicle price?", ""); var downpayment = window.prompt("what amount of down payment?", ""); var annualinterest = window.prompt("what annual interest rate loan?", ""); var nummonths = 24 var loanamount = vehicleprice - downpayment var monthlyinterest = annualinterest / 1200 vehicleprice = parsefloat(vehicleprice).tofixed(2); downpayment = parsefloat(downpayment).tofixed(2); loanamount = parsefloat(loanamount).tofixed(2); function calculate() { var baseamount = math.pow(1 + monthlyinterest, nummonths ); return loanamount * monthlyinterest / (1 - (1/baseamount)); } document.write("vehicle price: $" +vehicleprice+ "<br>"); document.write("down payment: $" +downpayment+ "<br>"); document.write("interest rate: " +annualinterest+ "%<br>"); document.write("loan amount: $" +loanamount+ "<br>"); (var count=2;count<=6;count+=1) { document.write(+calculate()+"<br />"); } </script> </body> </html>
ok, you'll have increment nummonths yourself. this...
for (var count=2;count<=6;count+=1) { document.write(+calculate()+"<br />"); nummonths += 12; } also, can use http://josscrowcroft.github.io/accounting.js/ currency formatting.
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