Eavan

for (var i = 0; i < 5; i++) { setTimeout(function (i) { console.log(i); }.bind(undefined, i), 1000); }

这个中序递归有问题。。

``` if (headA === null || headB === null) { return null } ``` 这一句应该不用判断的，如果其中一个是null，他们走一遍之后必定是null相等

Thank you very much, I also encounter this problem

> Works for me, but you need to install playwright i.e. `npx playwright-core install --with-deps chromium`. I would prefer to just let the user opt-in and avoid having install playwright...