Javascript 3
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<Label>Number</Label>
<input id="number" type="number" style="height: 200px;" placeholder="Pease Inpute Number" value=""/>
<button onclick="Sum();">Sum</button>
<br/>
<label id="result"></label>
<script>
let y=0;
function Sum(){
//let number=prompt("Please Inpute Number");
let number=document.getElementById("number");
let sum=0;
for(let i=0;i<number.value.length;i++){
sum=sum+parseInt(number.value[i]);
}
number.style.height="400px";
document.getElementById("result").innerHTML="Sum="+sum;
// document.writeln(sum);
}
</script>
</body>
</html>
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