1// number fibonnaci to array format
2function fibonacci(nums) {
3  
4  let fib = [0, 1];
5  let data = [];
6  
7  for(let i = 2; i <= nums; i++) {
8    fib[i] = fib[i - 1] + fib[i - 2]; 
9    data.push(fib[i]);
10  }
11  
12  return data;
13}

1
2function fibonacci(num){ 
3	var num1=0; 
4	var num2=1; 
5	var sum; 
6	var i=0; 
7	for (i = 0; i < num; i++){ 
8		sum=num1+num2; 
9		num1=num2; 
10		num2=sum; 
11	} 
12	return num2; 
13} 

1const fibo = (n, memo = {}) => memo[n] || (n <= 2 ? 1 : (memo[n] = fibo(n - 1, memo) + fibo(n - 2, memo)));
2
3// Examples
4fibo(6);    // 8