javascript code for fibonacci series code example

Example 1: recursive function for fibonacci series in java javascript

var fib = function(n) {
  if (n === 1) {
    return [0, 1];
  } else {
    var arr = fib(n - 1);
    arr.push(arr[arr.length - 1] + arr[arr.length - 2]);
    return arr;
  }
};

console.log(fib(8));

Example 2: fibonacci javascript

function fibonacci(num){ 
	var num1=0; 
	var num2=1; 
	var sum; 
	var i=0; 
	for (i = 0; i < num; i++){ 
		sum=num1+num2; 
		num1=num2; 
		num2=sum; 
	} 
	return num2; 
}

Example 3: javascript fibonacci series

const fibo = (n, memo = {}) => memo[n] || (n <= 2 ? 1 : (memo[n] = fibo(n - 1, memo) + fibo(n - 2, memo)));

// Examples
fibo(6);    // 8

Example 4: recursive function for fibonacci series in java javascript

var fib = function(n) {
  if (n === 1) {
    return [0, 1];
  } else {
    var arr = fib(n - 1);
    arr.push(arr[arr.length - 1] + arr[arr.length - 2]);
    return arr;
  }
};

console.log(fib(2));