What fires 'touchmove' event?

Question

I've been debugging a touchmove event and 'console.logging it', yet I still don't get and still haven't found any information on how does this event actually get fired.

So is this event fired based on distance/time, both?, When is this fired?

Answer 1

确切的实现取决于用户代理，可以在此处的规范第5.5节中读取touchmove事件。