Write a JavaScript program to add ‘n’ numbers?
Program: <html> <script type="text/javascript"> function sumDigits(num) { var i, sum = 0; ...
https://www.computersprofessor.com/2016/06/write-javascript-program-to-add-n.html
Program:
<html>
<script type="text/javascript">
function sumDigits(num) {
var i, sum = 0; // can declare two variables
at once
for (i = 1; i <= num;
i++) {
sum += i; // add each number to sum (ie, 1
+ 2 + ...+ num)
}
// Display result
alert("The sum of
the digits from 1 to "+ num + " is:\n\n\t " + sum);
}
</SCRIPT>
<BODY>
Looping Functions - Calculate the sum of the digits.
<FORM NAME="SumNums">
The sum of the digits from 1 to:
<INPUT TYPE="text" NAME="charNum">
<INPUT TYPE="button" VALUE="Calculate"
onClick="sumDigits(charNum.value)">
</form>
</body>
</html>
OutPut:
