I'm trying to write an if statement code to redirect users below 18 to a separate website from users above and equal to 18 but the code isn't running, can someone figure out and explain what the problem is?
<body>
<div>
<form>
How old are you?
<br>
<br>
<input type="text" id="number">
<button onclick = submit();>Submit</button>
</form>
</div>
<script>
function submit() {
var number= document.getElementById("number");
if (number >= 18 ) {
location.href = "inec.com.ng"
;}
else if (number== isNaN){
alert('Input a number');
}
else {location.href = "www.google.com";}
}
</script>