Tag - compute sum of digits in all numbers from 1 to n

let n=20;
function findSum(n)
{
let sum = 0;
for (let x = 1; x <= n; x++)
sum = sum + x;
return sum;
}
console.log(findSum(n));

Input string =’a+++b++c+’; Output String=a+b+c+ Source Code let str='a+++b++c+'; let outStr=''; let len=str.length; for(let i=0;i<len;i++) {...