function solution(a, b) {
let ans=0;
for (let i=0; i<a.length; i++) {
ans +=a[i]*b[i];
}
return ans;
}
console.log(solution([1, 2, 3, 4], [-3, -1, 0, 2]));
function solution(a, b) {
// return a.reduce((acc, _, i) => acc += a[i] * b[i], 0);
return a.reduce((acc, cur, idx) => acc += cur*b[idx], 0)
}
console.log(solution([1, 2, 3, 4], [-3, -1, 0, 2]));