I am looking to call my clear() JS function to clear the text values in some input fields on my webpage, but for some reason, the function doesn't appear to be called correctly. I believe this may be a scope issue, but I'm not sure.
Here is my markup, script and styling kept together for ease-of-use currently, but will be mended once scripting is finalized:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Quadratic Root Finder</title>
<script>
function calculateQuad()
{
var inputa = document.getElementById('variablea').value;
var inputb = document.getElementById('variableb').value;
var inputc = document.getElementById('variablec').value;
root = Math.pow(inputb,2) - 4 * inputa * inputc;
root1 = (-inputb + Math.sqrt(root))/2*inputa
root2 = (-inputb + Math.sqrt(root))/2*inputa
document.getElementById('root1').value = root1;
document.getElementById('root2').value = root2;
if(root<'0')
{
alert('This equation has no real solution.')
}
else {
if(root=='0')
{
document.getElementById('root1').value = root1
document.getElementById('root2').value = 'No Second Answer'
}
else {
document.getElementById('root1').value = root1
document.getElementById('root2').value = root1
}
}
}
function clear()
{
document.getElementById('variablea').value = "";
document.getElementById('variableb').value = "";
document.getElementById('variablec').value = "";
}
</script>
<style>
#container
{
text-align: center;
}
</style>
</head>
<body>
<div id="container">
<h1>Quadratic Root Finder!</h1>
<form id="form1">
a:<input id="variablea" value="" type="text">
<br/>
b:<input id="variableb" value="" type="text">
<br />
c:<input id="variablec" value="" type="text">
<br />
<input id="calculate" value="Calculate!" type="button" onClick="calculateQuad()">
<input id="erase" value="Clear" type="button" onClick="clear()">
<br />
<br />
Roots:
<br />
<input id="root1" type="text" readonly>
<br />
<input id="root2" type="text" readonly>
</form>
</div>
</body>
</html>