JavaScript Program to find Sum of Digits
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Find Sum of Digits
In the following example, we will add all the digits in the given number (12345) for just one time.
For example, 12345 = 1 + 2 + 3 + 4 + 5
i.e., 12345 = 15
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<h1>JS Sum of Digits</h1>
<script>
var num = 12345;
var copyNum = num;
var total = 0;
//Add Each digit from last digit.
while(copyNum != 0)
{
total += copyNum % 10;
copyNum = Math.floor(copyNum / 10);
}
// result
document.write("The sum of digit " +num +" is " +total);
</script>
</body>
</html>
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