Monday, November 16, 2015

Simple Interest Rate Calculator in JavaScript

A sample program that I wrote the will compute the interest rate of a loan I called this program simple interest rate calculator written in JavaScript.

If you  have some questions please send me an email at jake.r.pomperada@gmail.com and jakerpomperada@yahoo.com

My mobile number here in the Philippines is 09173084360.


Sample Program Output

Program Listing

<html>
<style>
body,p {

  font-family:arial;
  font-size:16px;
  font-weight:bolder;
 }

    .container {
        width: 350px;
        clear: both;
    }
    .container input {
        width: 100%;
        clear: both;
    }

    </style>
<div class="container">
<body>
<h3> Simple Interest Calculator </h3>
<br/>Principal (P): Php
<input type="text" id="principal" name="principal">
<br>
<br/> Rate (R):
<input type="text" id="rate" name="rate">
<br>
<br/> Time (t):
<input type="text" id="time" name="time">
<br>
<br>
<button onclick="compute_interest()">Compute Interest</button>
<br><br>
<p id="demo"></p>

</div>
<script>
function Commas(n) {
    var parts=n.toString().split(".")
    return parts[0].replace(/\B(?=(\d{3})+(?!\d))/g, ",") + (parts[1] ? "." + parts[1] : "");
}
  function compute_interest() {
    var  principal = document.getElementById("principal").value;
var  rate = document.getElementById("rate").value;
var  time = document.getElementById("time").value;
     rate2 = parseFloat(rate)/100;
amount_interest = parseFloat(principal) * (1+ (parseFloat(rate2)*time));
     
amt =amount_interest.toFixed(2);
display = Commas(amt);
results ="Amount to be paid is Php " + display+".";
     
      document.getElementById("demo").innerHTML = results;
  }
</script>
</body>

</html>

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