How do I use Javascript to make a simple converter

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Hi. I'm trying to make a converter for sensitivity in a game. I want the user to be able to input their mouse sensitivity and game sensitivity, then their new mouse sensitivity, the click convert. I lack knowledge in Javascript, so whatever I have already will be completely broken.

JavaScript

<html>
<body>
<form>
<p>Current DPI</p>
<input id="curDpi">
</br>
<p>Current Sensitivity</p>
<input id="curSens">
</br>
<p>New DPI</p>
<input id="newDpi">
</br>
<button id="convert">Convert</button>
</br>
<p id="newSens"></p>

<script>
function convert(){
var curDpi = document.getElementById("curDpi");
var curSens = document.getElementById("curSens");
var newDpi = document.getElementById("newDpi");
var convert = curDpi.text * curSens.text / newDpi.text;
document.getElementById("newSens").innerHTML = convert;
}
document.getElementById("convert").onclick = convert();
</script>

</body>
</html>

Here's what I have. I don't know enough Javascript to have any idea what I'm doing wrong. For all I know my HTML is broken. I'm just trying to make a simple program to save people's time. I think it's to do with the multiplication. I don't think I'm getting the text from the input. But, I have no idea.

Posted 6-Sep-14 18:47pm

Aaudiio

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ChauhanAjay · Answer 1 · 2014-09-06T20:51:00

Just try the code below may be it helps.

HTML

<html>
<head>
<script language="javascript">
function convertor(){
var curDpi = document.getElementById("curDpi");
var curSens = document.getElementById("curSens");
var newDpi = document.getElementById("newDpi");
var convert = parseInt(curDpi.value) * parseInt(curSens.value) / parseInt(newDpi.value);
document.getElementById("newSens").innerHTML = convert;
}
</script>
</head>
<body>
<form>
<p>Current DPI</p>
<input id="curDpi">

<p>Current Sensitivity</p>
<input id="curSens">

<p>New DPI</p>
<input id="newDpi">

<button id="convert" onclick="return convertor()">Convert</button>

<div id="newSens"></div>
</form> 
</body>
</html>

Hope I understood your problem in a correct manner.

ArindamNayak · Answer 2 · 2014-09-07T08:58:00

Solution 2

Can't you write onclick directly in button, instead of binding that in javascript!

Posted 7-Sep-14 8:58am

ArindamNayak