Discussion on: Addition of n successive integers.

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Replies for: if you want to get the sum of n successive numbers, say 1,2,3,4,5,6 here n=6 then you can return (n)(n+1)/2 which in this case will be 21. Say you...

I have seen your comment but I don't want to understand that actually I wanted the JavaScript code where the use give the value of n through the browser using an input box.

Sailesh Dahal • Dec 20 '20

function getSumUpto(n){
    return (n+1)*n*0.5;
}