170. Generate CSS Selector for target element

Given a DOM tree and a target element, generate a valid selector to target it.

For example, for a DOM tree like below

<div>  <p>BFE.dev</p>  <div>    is    <p>      <span>great. <button>click me!</button></span>    </p>  </div></div>

There could be more than 1 answer.

let selector = generateSelector(root, target) // 'button'expect(root.querySelector(selector)).toBe(target)selector = generateSelector(root, target) // 'div > div > p > button'expect(root.querySelector(selector)).toBe(target)