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Java-based LeetCode algorithm problem solutions, regularly updated
2648\. Generate Fibonacci Sequence
Easy
Write a generator function that returns a generator object which yields the **fibonacci sequence**.
The **fibonacci sequence** is defined by the relation Xn = Xn-1 + Xn-2.
The first few numbers of the series are `0, 1, 1, 2, 3, 5, 8, 13`.
**Example 1:**
**Input:** callCount = 5
**Output:** [0,1,1,2,3]
**Explanation:**
const gen = fibGenerator();
gen.next().value; // 0
gen.next().value; // 1
gen.next().value; // 1
gen.next().value; // 2
gen.next().value; // 3
**Example 2:**
**Input:** callCount = 0
**Output:** []
**Explanation:** gen.next() is never called so nothing is outputted
**Constraints:**
* `0 <= callCount <= 50`