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Temperature.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>temperature change</title>
<link rel="stylesheet" href="Temperature.css">
</head>
<body>
<h1>temperature change</h1>
<div id="container">
<div class="input-div">
<label>Celsius</label><br>
<input type="number" value="0" id="cel" class="inp">
</div>
<div class="input-div">
<label>Fahrenheit</label><br>
<input type="number" value="32" id="fah" class="inp">
</div>
</div>
<script>
var cel = document.getElementById('cel');
var fah = document.getElementById('fah');
cel.addEventListener('input', function () {
c = this.value;
f = (c * 9 / 5) + 32;
if (!Number.isInteger(f)) {
f = f.toFixed(4);
}
fah.value = f;
})
fah.addEventListener('input', function () {
f = this.value;
c = (f - 32) * 5 / 9;
if (!Number.isInteger(c)) {
c = c.toFixed(4);
}
cel.value = c;
})
</script>
</body>
</html>