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ajmas/addAll.js

Last active September 4, 2017 20:51
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Javascript function, for adding all numbers from 1 to n, inclusive
Raw
addAll.js
/**
* Adds all numbers from 1 to maxInteger, inclusive
*/
function addAll (maxInteger) {
let n = maxInteger;
let m = 0;
if (n%2 === 1) {
m = n;
n = n - 1;
}
return (n + n/2 + ((n/2)-1)*n) + m;
}
// See jsfiddle: https://jsfiddle.net/4aesf8oo/1/
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