I looked everywhere for efficient logic to get fibonacci series but all I could get was typical codes which hardly a newBie could understand so I simplified the whole in just few lines of code logic.

lets have a look:

The logic is as below:

//n is the number of limit for series
const getFibonacci  = (n) => {
    const result = [0,1];

    for (let i = 1; i <= n; i++){
        result.push(result[i - 1] + result[i]);

    }

    return result.join(`\n`)
}
getFibonacci(12)

Output :
0
1
1
2
3
5
8
13
21
34
55
89
144
233
377
610
987