How to calculate age in javascript

Friday, 15 September 2017

How to calculate age in javascript

How to calculate age In Java script

<html>
<head><title>Calc Age</title>
<script>
date=new Date();
var a=date.getDate();
var b=date.getMonth()+1;
var c=date.getFullYear();
function dy()
{
var data="<option value='0'>Day</option>";
for(i=1;i<=31;i++)
data=data+"<option id="+i+">"+i+"</option>";
document.getElementById("d1").innerHTML=data;

var data="<option value='0'>Month</option>";
for(i=1;i<=12;i++)
data=data+"<option id="+i+">"+i+"</option>";
document.getElementById("m").innerHTML=data;

var data="<option value='0'>Year</option>";
for(i=1900;i<=c;i++)
data=data+"<option id="+i+">"+i+"</option>";
document.getElementById("y").innerHTML=data;
}
function cal()
{
date=new Date();
var a=date.getDate();
var b=date.getMonth()+1;
var c=date.getFullYear();
var od=parseInt(d1.value);
var om=m.value;
var oy=y.value;
if(a<od)
{
b--;
a=a+30;
}

t1.value=a-od;
if(b<om)
{
c--;
b=b+12;

}
t2.value=b-om;
t3.value=c-oy;
}
</script>
</head>
<body onLoad="dy();">
<center><h1>Calculate your age</h1></center>
<b>Select your Dob:</b>
<select id="d1">
</select>
<select id="m">
</select>
<select id="y">
</select><br>
Day<input type="text" id="t1" name="t1"><br>
Month<input type="text" id="t2" name="t2"><br>
Year<input type="text" id="t3" name="t3"><br>
<input type="button" value="calc age" onClick="cal();">

</body>
</html>

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Friday, 15 September 2017