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Enter a number and write a function that adds the digits together on button click in JavaScript
We are required to write a JavaScript program that provides users an input to fill in a number.
And upon filling when the user clicks the button, we should display the sum of all the digits of the number.
Example
The code for this will be −
JavaScript Code −
function myFunc() {
var num = document.getElementById('digits').value;
var tot = 0;
num.split('').forEach( function (x) {
tot = tot + parseInt(x,10);
});
document.getElementById('output').innerHTML = tot;
}HTML Code −
<input id="digits" /> <button onClick="myFunc()">Submit</button> <div id="output"></div>
Output
And the output will be &miuns;
After clicking “Submit” −
Updated on: 24-Nov-2020
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