pejantantangguh/calc.html

## calc.html
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <div>
        <form name="wallPaperCalc">
            <input type="number" name="width" id="width" placeholder="Input Width in cm" value="">
            <input type="number" name="length" id="length" placeholder="Input Length in cm" value="">
            <p>Results : <span id="qtyNeeded"></span></p>
            <button type="submit" value="Submit" id="submit" onclick="calc()">Submit</button>
        </form>
    </div>
    <script>


        // document.getElementById("qtyNeeded").innerHTML = calc(qtyNeeded);
        function calc() {
            let width, length, result;
            let wallPaperSize = 38
            length = Number(document.wallPaperCalc.length.value);
            width = Number(document.wallPaperCalc.width.value);
            result = Math.ceil(((length * width) / 10000) / wallPaperSize);
            alert(result);
        }
    </script>
</body>

</html>
	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>Document</title>
	</head>

	<body>
	<div>
	<form name="wallPaperCalc">
	<input type="number" name="width" id="width" placeholder="Input Width in cm" value="">
	<input type="number" name="length" id="length" placeholder="Input Length in cm" value="">
	<p>Results : <span id="qtyNeeded"></span></p>
	<button type="submit" value="Submit" id="submit" onclick="calc()">Submit</button>
	</form>
	</div>
	<script>


	// document.getElementById("qtyNeeded").innerHTML = calc(qtyNeeded);
	function calc() {
	let width, length, result;
	let wallPaperSize = 38
	length = Number(document.wallPaperCalc.length.value);
	width = Number(document.wallPaperCalc.width.value);
	result = Math.ceil(((length * width) / 10000) / wallPaperSize);
	alert(result);
	}
	</script>
	</body>

	</html>